WO2015011924A1 - 新規化合物及びそれを用いた有機エレクトロルミネッセンス素子 - Google Patents
新規化合物及びそれを用いた有機エレクトロルミネッセンス素子 Download PDFInfo
- Publication number
- WO2015011924A1 WO2015011924A1 PCT/JP2014/003885 JP2014003885W WO2015011924A1 WO 2015011924 A1 WO2015011924 A1 WO 2015011924A1 JP 2014003885 W JP2014003885 W JP 2014003885W WO 2015011924 A1 WO2015011924 A1 WO 2015011924A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- group
- substituted
- formula
- compound
- carbon atoms
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
- 0 *[C@@](c(ccc1c2cccc1)c2N)[n](c1ccccc11)c2c1c(-c1c(c3ccccc3[n]3-c4ccccc4)c3ccc1)ccc2 Chemical compound *[C@@](c(ccc1c2cccc1)c2N)[n](c1ccccc11)c2c1c(-c1c(c3ccccc3[n]3-c4ccccc4)c3ccc1)ccc2 0.000 description 2
- XKJKURFPKOWJLK-UHFFFAOYSA-N Brc1cccc(-c2nc3c(cccc4)c4ccc3c(-c3ccccc3)n2)c1 Chemical compound Brc1cccc(-c2nc3c(cccc4)c4ccc3c(-c3ccccc3)n2)c1 XKJKURFPKOWJLK-UHFFFAOYSA-N 0.000 description 1
- SFRNAYVWXWFABR-UHFFFAOYSA-N C(C1)C=CC=C1c1nc(-[n]2c(ccc(-c(cc3)cc(c4cc(-c5ccccc5)ccc44)c3[n]4-c3ccccc3)c3)c3c3cc(-c4ccccc4)ccc23)nc2c(cccc3)c3ccc12 Chemical compound C(C1)C=CC=C1c1nc(-[n]2c(ccc(-c(cc3)cc(c4cc(-c5ccccc5)ccc44)c3[n]4-c3ccccc3)c3)c3c3cc(-c4ccccc4)ccc23)nc2c(cccc3)c3ccc12 SFRNAYVWXWFABR-UHFFFAOYSA-N 0.000 description 1
- MMLFCJCLWQTJKD-UHFFFAOYSA-N C(C1)C=Cc2c1[n](C1C=CC=CC1)c1c2c(-c(cc2)cc3c2c2ccccc2[n]3-c2nc(-c3ccccc3)c(ccc3c4cccc3)c4n2)ccc1 Chemical compound C(C1)C=Cc2c1[n](C1C=CC=CC1)c1c2c(-c(cc2)cc3c2c2ccccc2[n]3-c2nc(-c3ccccc3)c(ccc3c4cccc3)c4n2)ccc1 MMLFCJCLWQTJKD-UHFFFAOYSA-N 0.000 description 1
- WWDXXDVYMBWEIP-UHFFFAOYSA-N C(C1)C=Cc2c1c1ccccc1[n]2-c1cccc2c1c1ccccc1[n]2-c1nc(c2ccccc2cc2)c2c(-c(cc2)ccc2C2=CC=CCC2)n1 Chemical compound C(C1)C=Cc2c1c1ccccc1[n]2-c1cccc2c1c1ccccc1[n]2-c1nc(c2ccccc2cc2)c2c(-c(cc2)ccc2C2=CC=CCC2)n1 WWDXXDVYMBWEIP-UHFFFAOYSA-N 0.000 description 1
- WYNLKXJSIJCPHF-UHFFFAOYSA-N C(c(cc1)ccc1-c1nc(-c(cc2)c(cccc3)c3c2-[n]2c(ccc(-[n]3c(cccc4)c4c4c3cccc4)c3)c3c3ccccc23)nc2c1ccc1ccccc21)[n](c(cccc1)c1c1c2)c1ccc2-[n]1c2ccccc2c2c1cccc2 Chemical compound C(c(cc1)ccc1-c1nc(-c(cc2)c(cccc3)c3c2-[n]2c(ccc(-[n]3c(cccc4)c4c4c3cccc4)c3)c3c3ccccc23)nc2c1ccc1ccccc21)[n](c(cccc1)c1c1c2)c1ccc2-[n]1c2ccccc2c2c1cccc2 WYNLKXJSIJCPHF-UHFFFAOYSA-N 0.000 description 1
- XSXPOLRMTAXVLQ-UHFFFAOYSA-N C1C=CC(C(C=CC(C2)c3cccc4c3c(cccc3)c3[n]4-c3ccccc3)=C2Nc2nc(-c3cccc4c3cccc4)c(ccc3c4cccc3)c4n2)=CC1 Chemical compound C1C=CC(C(C=CC(C2)c3cccc4c3c(cccc3)c3[n]4-c3ccccc3)=C2Nc2nc(-c3cccc4c3cccc4)c(ccc3c4cccc3)c4n2)=CC1 XSXPOLRMTAXVLQ-UHFFFAOYSA-N 0.000 description 1
- KKWGDDWPQUJGHR-UHFFFAOYSA-N C1C=CC([n](c2c3cccc2)c2c3c(-c(cc3)cc4c3c(C=CCC3)c3[n]4C(N=C3c(cc4)ccc4-c4ccccc4)=NC4C3=CC=C3C=CC=CC43)ccc2)=CC1 Chemical compound C1C=CC([n](c2c3cccc2)c2c3c(-c(cc3)cc4c3c(C=CCC3)c3[n]4C(N=C3c(cc4)ccc4-c4ccccc4)=NC4C3=CC=C3C=CC=CC43)ccc2)=CC1 KKWGDDWPQUJGHR-UHFFFAOYSA-N 0.000 description 1
- IBMDMNKZMDDAPK-UHFFFAOYSA-N CC(C)(C)c1cccc(-c2nc(c(cccc3)c3cc3)c3c(-c(cc3)ccc3-[n]3c(ccc(-c(cc4)cc(c5ccccc55)c4[n]5-c4ccccc4)c4)c4c4c3cccc4)n2)c1 Chemical compound CC(C)(C)c1cccc(-c2nc(c(cccc3)c3cc3)c3c(-c(cc3)ccc3-[n]3c(ccc(-c(cc4)cc(c5ccccc55)c4[n]5-c4ccccc4)c4)c4c4c3cccc4)n2)c1 IBMDMNKZMDDAPK-UHFFFAOYSA-N 0.000 description 1
- FSXKPJUGFGFJJE-UHFFFAOYSA-N CC(C)(C)c1cccc(C(NC2c(cc3)ccc3-[n](c3ccccc33)c4c3c(-c3c(c5ccccc5[n]5-c6ccccc6)c5ccc3)ccc4)Nc3c2ccc2c3cccc2)c1 Chemical compound CC(C)(C)c1cccc(C(NC2c(cc3)ccc3-[n](c3ccccc33)c4c3c(-c3c(c5ccccc5[n]5-c6ccccc6)c5ccc3)ccc4)Nc3c2ccc2c3cccc2)c1 FSXKPJUGFGFJJE-UHFFFAOYSA-N 0.000 description 1
- JUQLIMMFPFHPSO-SBJRCSQSSA-N CC(C)(C)c1cccc(C/N=C(/c(cc2)ccc2Nc(ccc(-c2cc(-c3cc(-c4ccccc4)ccc3Nc3ccccc3)ccc2)c2)c2-c2cc(-c3ccccc3)ccc2)\c(ccc2c3cccc2)c3N)c1 Chemical compound CC(C)(C)c1cccc(C/N=C(/c(cc2)ccc2Nc(ccc(-c2cc(-c3cc(-c4ccccc4)ccc3Nc3ccccc3)ccc2)c2)c2-c2cc(-c3ccccc3)ccc2)\c(ccc2c3cccc2)c3N)c1 JUQLIMMFPFHPSO-SBJRCSQSSA-N 0.000 description 1
- MIIZLHUSIUVZLV-UHFFFAOYSA-N CC(C)(C)c1cccc(C2N=C(c(cc3)ccc3-[n]3c(ccc(-[n]4c(cccc5)c5c5c4cccc5)c4)c4c4c3cccc4)c(ccc3c4cccc3)c4N2)c1 Chemical compound CC(C)(C)c1cccc(C2N=C(c(cc3)ccc3-[n]3c(ccc(-[n]4c(cccc5)c5c5c4cccc5)c4)c4c4c3cccc4)c(ccc3c4cccc3)c4N2)c1 MIIZLHUSIUVZLV-UHFFFAOYSA-N 0.000 description 1
- UDEBUAYVCJJEGH-UHFFFAOYSA-N CC(C)(c1ccccc1-c1c2)c1ccc2-c1nc(-[n](c2ccccc22)c3c2c(-[n]2c4ccccc4c4c2cccc4)ccc3)nc2c1ccc1c2C=CCC1 Chemical compound CC(C)(c1ccccc1-c1c2)c1ccc2-c1nc(-[n](c2ccccc22)c3c2c(-[n]2c4ccccc4c4c2cccc4)ccc3)nc2c1ccc1c2C=CCC1 UDEBUAYVCJJEGH-UHFFFAOYSA-N 0.000 description 1
- HGOINWVVLLKILT-UHFFFAOYSA-N CC(C1)C=Cc2c1[n](C1C(C)C=CCC1)c(C=CC1)c2C1c(cc1)cc2c1c(C=CCC1C)c1[n]2-c(cc1)ccc1-c1nc(-c2cc(C3C=CC=CC3)ccc2)c(ccc2c3cccc2)c3n1 Chemical compound CC(C1)C=Cc2c1[n](C1C(C)C=CCC1)c(C=CC1)c2C1c(cc1)cc2c1c(C=CCC1C)c1[n]2-c(cc1)ccc1-c1nc(-c2cc(C3C=CC=CC3)ccc2)c(ccc2c3cccc2)c3n1 HGOINWVVLLKILT-UHFFFAOYSA-N 0.000 description 1
- HEKGKCPAXNOSPD-UHFFFAOYSA-N CC(CC(c(cc1)cc(c2cc(-c3ccccc3)ccc22)c1[n]2-c1ccccc1)=C1)c2c1c(C=C(CC1)c3ccccc3)c1[n]2-c1ccc(C2N=C(c(cc3)cc(C4(C)C)c3C3=C4C=CCC3)c3ccc(cccc4)c4c3N2)cc1 Chemical compound CC(CC(c(cc1)cc(c2cc(-c3ccccc3)ccc22)c1[n]2-c1ccccc1)=C1)c2c1c(C=C(CC1)c3ccccc3)c1[n]2-c1ccc(C2N=C(c(cc3)cc(C4(C)C)c3C3=C4C=CCC3)c3ccc(cccc4)c4c3N2)cc1 HEKGKCPAXNOSPD-UHFFFAOYSA-N 0.000 description 1
- ZOYKABGXEGFIDQ-UHFFFAOYSA-N CC(CC(c1ccccc1)=C1)c2c1c(cc(cc1)-c(cc3)cc(c4c5CCC(C6=CCCC=C6)=C4)c3[n]5-c3ccccc3)c1[n]2-c(cc1)ccc1-c1nc2c(cccc3)c3ccc2c(-c2cc3ccccc3cc2)n1 Chemical compound CC(CC(c1ccccc1)=C1)c2c1c(cc(cc1)-c(cc3)cc(c4c5CCC(C6=CCCC=C6)=C4)c3[n]5-c3ccccc3)c1[n]2-c(cc1)ccc1-c1nc2c(cccc3)c3ccc2c(-c2cc3ccccc3cc2)n1 ZOYKABGXEGFIDQ-UHFFFAOYSA-N 0.000 description 1
- ZUVPDILWWJIKBL-UHFFFAOYSA-N CC(CC=C1)c2c1c(C(C(C)C=C1)C(C3c4ccccc44)=CC=CC3N4c3ccccc3)c1[n]2-c(cc1)ccc1[IH]N Chemical compound CC(CC=C1)c2c1c(C(C(C)C=C1)C(C3c4ccccc44)=CC=CC3N4c3ccccc3)c1[n]2-c(cc1)ccc1[IH]N ZUVPDILWWJIKBL-UHFFFAOYSA-N 0.000 description 1
- SOALLWGUJJBSBX-UHFFFAOYSA-N CC(CC=C1)c2c1c(C(c1cccc3c1c1ccccc1[n]3-c1ccccc1)=CCC1)c1[n]2-c1cc(-c2ccc(C(Nc3c4ccc5c3cccc5)N=C4N(C3C=CC=CC33)c4c3c(C3=CCCc5c3c3ccccc3[n]5-c3ccccc3)ccc4)cc2)ccc1 Chemical compound CC(CC=C1)c2c1c(C(c1cccc3c1c1ccccc1[n]3-c1ccccc1)=CCC1)c1[n]2-c1cc(-c2ccc(C(Nc3c4ccc5c3cccc5)N=C4N(C3C=CC=CC33)c4c3c(C3=CCCc5c3c3ccccc3[n]5-c3ccccc3)ccc4)cc2)ccc1 SOALLWGUJJBSBX-UHFFFAOYSA-N 0.000 description 1
- MWEUXMPNLKAOSX-ISTNBTPRSA-N CC(CC=C1)c2c1c(c(-c1c(c3ccccc3[n]3/C=C\C(\C(N=C4[n](c5ccccc55)c6c5c(-c5c(c7ccccc7[n]7-c8ccccc8)c7ccc5)ccc6)=NC5C4=CC=C4C=CC=CC54)=C/C=C)c3ccc1)ccc1)c1[n]2-c1ccccc1 Chemical compound CC(CC=C1)c2c1c(c(-c1c(c3ccccc3[n]3/C=C\C(\C(N=C4[n](c5ccccc55)c6c5c(-c5c(c7ccccc7[n]7-c8ccccc8)c7ccc5)ccc6)=NC5C4=CC=C4C=CC=CC54)=C/C=C)c3ccc1)ccc1)c1[n]2-c1ccccc1 MWEUXMPNLKAOSX-ISTNBTPRSA-N 0.000 description 1
- WVLCMUBQLPFNII-PDEVMXJZSA-N CC1c([n](/C=C\C(\C(/N=C(/c(cc2)ccc2-[n](c2ccccc22)c3c2c(C2=CCCc4c2c2ccccc2[n]4-c2ccccc2)ccc3)\c(ccc2c3cccc2)c3N)=[IH])=C/C=C)c2ccccc22)c2C(C2=CCC(C)c3c2c2ccccc2[n]3-c2ccccc2)=CC1 Chemical compound CC1c([n](/C=C\C(\C(/N=C(/c(cc2)ccc2-[n](c2ccccc22)c3c2c(C2=CCCc4c2c2ccccc2[n]4-c2ccccc2)ccc3)\c(ccc2c3cccc2)c3N)=[IH])=C/C=C)c2ccccc22)c2C(C2=CCC(C)c3c2c2ccccc2[n]3-c2ccccc2)=CC1 WVLCMUBQLPFNII-PDEVMXJZSA-N 0.000 description 1
- BACHYRZWFWZUES-UHFFFAOYSA-N CC1c([n](c2c3cccc2)-c2cc(C(c(ccc4c5cccc4)c5/N=C(/c(cc4)cc(cc5)c4cc5-[n]4c(C=CCC5c6c(c(cccc7)c7[n]7-c8ccccc8)c7ccc6)c5c5ccccc45)\N)=C)ccc2)c3C(c2c(c3ccccc3[n]3-c4ccccc4)c3ccc2)=CC1 Chemical compound CC1c([n](c2c3cccc2)-c2cc(C(c(ccc4c5cccc4)c5/N=C(/c(cc4)cc(cc5)c4cc5-[n]4c(C=CCC5c6c(c(cccc7)c7[n]7-c8ccccc8)c7ccc6)c5c5ccccc45)\N)=C)ccc2)c3C(c2c(c3ccccc3[n]3-c4ccccc4)c3ccc2)=CC1 BACHYRZWFWZUES-UHFFFAOYSA-N 0.000 description 1
- ZRYQTCRLFBKSRP-UHFFFAOYSA-N CN1c2c(cccc3)c3ccc2C(c2cc(C3C=CC=CC3)ccc2)=NC1c(cc1)ccc1-[n](c1ccccc11)c2c1c(-[n]1c(cccc3)c3c3c1cccc3)ccc2 Chemical compound CN1c2c(cccc3)c3ccc2C(c2cc(C3C=CC=CC3)ccc2)=NC1c(cc1)ccc1-[n](c1ccccc11)c2c1c(-[n]1c(cccc3)c3c3c1cccc3)ccc2 ZRYQTCRLFBKSRP-UHFFFAOYSA-N 0.000 description 1
- YENBWWGFEVIBRP-UHFFFAOYSA-N COc1cc(-c2ccc(C(NC3[n](c4ccccc44)c5c4c(-c4c(c6ccccc6[n]6-c7ccccc7)c6ccc4)ccc5)Nc4c3ccc3c4cccc3)cc2)ccc1 Chemical compound COc1cc(-c2ccc(C(NC3[n](c4ccccc44)c5c4c(-c4c(c6ccccc6[n]6-c7ccccc7)c6ccc4)ccc5)Nc4c3ccc3c4cccc3)cc2)ccc1 YENBWWGFEVIBRP-UHFFFAOYSA-N 0.000 description 1
- PYDKRXAVVOWITB-UHFFFAOYSA-O COc1cc(-c2ccc(C(Nc3c4ccc5c3cccc5)[NH+]=C4Nc(ccc(-c(cc3)cc(c4c5ccc(-c6ccccc6)c4)c3[n]5-c3ccccc3)c3)c3-c3cccc(-c4ccccc4)c3)cc2)ccc1 Chemical compound COc1cc(-c2ccc(C(Nc3c4ccc5c3cccc5)[NH+]=C4Nc(ccc(-c(cc3)cc(c4c5ccc(-c6ccccc6)c4)c3[n]5-c3ccccc3)c3)c3-c3cccc(-c4ccccc4)c3)cc2)ccc1 PYDKRXAVVOWITB-UHFFFAOYSA-O 0.000 description 1
- IHIIBWMTHVLVOV-UHFFFAOYSA-O COc1cc(-c2ccc(C(Nc3c4ccc5c3cccc5)[NH+]=C4[n]3c(ccc(-[n]4c(cccc5)c5c5c4cccc5)c4)c4c4ccccc34)cc2)ccc1 Chemical compound COc1cc(-c2ccc(C(Nc3c4ccc5c3cccc5)[NH+]=C4[n]3c(ccc(-[n]4c(cccc5)c5c5c4cccc5)c4)c4c4ccccc34)cc2)ccc1 IHIIBWMTHVLVOV-UHFFFAOYSA-O 0.000 description 1
- XLGAAXRXYRYNEM-UHFFFAOYSA-N COc1cccc(-c2ccc(C(Nc3c4ccc5c3cccc5)N=C4Nc(c(-c3ccccc3)c3)ccc3-c(cc3)cc(c4ccccc44)c3[n]4-c3ccccc3)cc2)c1 Chemical compound COc1cccc(-c2ccc(C(Nc3c4ccc5c3cccc5)N=C4Nc(c(-c3ccccc3)c3)ccc3-c(cc3)cc(c4ccccc44)c3[n]4-c3ccccc3)cc2)c1 XLGAAXRXYRYNEM-UHFFFAOYSA-N 0.000 description 1
- VTRJDQIPXYSTEL-UHFFFAOYSA-N FC(c(cc1)cc2c1ccc(-c1nc(c3ccccc3cc3)c3c(-c3cccc(-[n]4c(ccc(-c5cc(-c6cc(-c7ccccc7)ccc6Nc6ccccc6)ccc5)c5)c5c5cc(-c6ccccc6)ccc45)c3)n1)c2)(F)F Chemical compound FC(c(cc1)cc2c1ccc(-c1nc(c3ccccc3cc3)c3c(-c3cccc(-[n]4c(ccc(-c5cc(-c6cc(-c7ccccc7)ccc6Nc6ccccc6)ccc5)c5)c5c5cc(-c6ccccc6)ccc45)c3)n1)c2)(F)F VTRJDQIPXYSTEL-UHFFFAOYSA-N 0.000 description 1
- GWDKXHSANIMDMU-UHFFFAOYSA-N FC(c1cc2cc(C3N=C(c4cccc(-[n](c5c6cccc5)c5c6c(-c6c(c7ccccc7[n]7-c8ccccc8)c7ccc6)ccc5)c4)c(ccc4c5cccc4)c5[N-]3)ccc2cc1)(F)F Chemical compound FC(c1cc2cc(C3N=C(c4cccc(-[n](c5c6cccc5)c5c6c(-c6c(c7ccccc7[n]7-c8ccccc8)c7ccc6)ccc5)c4)c(ccc4c5cccc4)c5[N-]3)ccc2cc1)(F)F GWDKXHSANIMDMU-UHFFFAOYSA-N 0.000 description 1
- PTLFKNAKTIPRJV-UHFFFAOYSA-N N=C(c1cccc(-[n]2c(ccc(-[n]3c(cccc4)c4c4c3cccc4)c3)c3c3ccccc23)c1)c(ccc1c2cccc1)c2[N-]Cc1ccc(ccc(C(F)(F)F)c2)c2c1 Chemical compound N=C(c1cccc(-[n]2c(ccc(-[n]3c(cccc4)c4c4c3cccc4)c3)c3c3ccccc23)c1)c(ccc1c2cccc1)c2[N-]Cc1ccc(ccc(C(F)(F)F)c2)c2c1 PTLFKNAKTIPRJV-UHFFFAOYSA-N 0.000 description 1
- BXLAOTVNZMHUJD-UHFFFAOYSA-N N=C(c1cccc(Nc(ccc(-c2cc(-c3ccccc3Nc3ccccc3)ccc2)c2)c2-c2ccccc2)c1)c(ccc1c2cccc1)c2[N-]Cc1cc2cc(C(F)(F)F)ccc2cc1 Chemical compound N=C(c1cccc(Nc(ccc(-c2cc(-c3ccccc3Nc3ccccc3)ccc2)c2)c2-c2ccccc2)c1)c(ccc1c2cccc1)c2[N-]Cc1cc2cc(C(F)(F)F)ccc2cc1 BXLAOTVNZMHUJD-UHFFFAOYSA-N 0.000 description 1
- KZZFXNIVIXKUDM-UHFFFAOYSA-N c(cc1)cc(c2c3ccc(-[n]4c5ccccc5c5c4cccc5)c2)c1[N-]3-c(cc1)ccc1-c1nc(-c(cc2)ccc2-[n]2c(ccc(-[n]3c(cccc4)c4c4c3cccc4)c3)c3c3ccccc23)nc2c1ccc1c2cccc1 Chemical compound c(cc1)cc(c2c3ccc(-[n]4c5ccccc5c5c4cccc5)c2)c1[N-]3-c(cc1)ccc1-c1nc(-c(cc2)ccc2-[n]2c(ccc(-[n]3c(cccc4)c4c4c3cccc4)c3)c3c3ccccc23)nc2c1ccc1c2cccc1 KZZFXNIVIXKUDM-UHFFFAOYSA-N 0.000 description 1
- SVKKETBRPZBMBI-UHFFFAOYSA-N c(cc1)cc(c2c3cccc2)c1[n]3-c(cc1)cc(c2c3cccc2)c1[n]3-c1cccc(-c2nc(-c3cccc(-[n](c4ccccc4c4c5)c4ccc5-[n]4c(cccc5)c5c5c4cccc5)c3)nc3c2ccc2ccccc32)c1 Chemical compound c(cc1)cc(c2c3cccc2)c1[n]3-c(cc1)cc(c2c3cccc2)c1[n]3-c1cccc(-c2nc(-c3cccc(-[n](c4ccccc4c4c5)c4ccc5-[n]4c(cccc5)c5c5c4cccc5)c3)nc3c2ccc2ccccc32)c1 SVKKETBRPZBMBI-UHFFFAOYSA-N 0.000 description 1
- QTKHUHDGBCJEEA-UHFFFAOYSA-N c(cc1)cc(c2c3cccc2)c1[n]3-c(cc1c2c3cccc2)ccc1[n]3-c(cc1)ccc1-c1nc(-[n]2c(ccc(-[n]3c(cccc4)c4c4c3cccc4)c3)c3c3ccccc23)nc2c1ccc1ccccc21 Chemical compound c(cc1)cc(c2c3cccc2)c1[n]3-c(cc1c2c3cccc2)ccc1[n]3-c(cc1)ccc1-c1nc(-[n]2c(ccc(-[n]3c(cccc4)c4c4c3cccc4)c3)c3c3ccccc23)nc2c1ccc1ccccc21 QTKHUHDGBCJEEA-UHFFFAOYSA-N 0.000 description 1
- HUOZDDVYIIOGIT-UHFFFAOYSA-N c(cc1)cc(c2cc(-[n]3c(cccc4)c4c4c3cccc4)ccc22)c1[N-]2-c(cc1)ccc1-c1nc(-[n]2c(ccc(-[n]3c(cccc4)c4c4c3cccc4)c3)c3c3c2cccc3)nc2c1ccc1ccccc21 Chemical compound c(cc1)cc(c2cc(-[n]3c(cccc4)c4c4c3cccc4)ccc22)c1[N-]2-c(cc1)ccc1-c1nc(-[n]2c(ccc(-[n]3c(cccc4)c4c4c3cccc4)c3)c3c3c2cccc3)nc2c1ccc1ccccc21 HUOZDDVYIIOGIT-UHFFFAOYSA-N 0.000 description 1
- QIVHRVCTONHPFW-UHFFFAOYSA-N c(cc1)cc(c2ccccc22)c1[n]2-c(cc1)cc(c2c3cccc2)c1[n]3-c1cc(-c2nc(-c(cc3)cc(cc4)c3cc4-[n](c3ccccc3c3c4)c3ccc4-[n]3c(cccc4)c4c4c3cccc4)nc3c2ccc2ccccc32)ccc1 Chemical compound c(cc1)cc(c2ccccc22)c1[n]2-c(cc1)cc(c2c3cccc2)c1[n]3-c1cc(-c2nc(-c(cc3)cc(cc4)c3cc4-[n](c3ccccc3c3c4)c3ccc4-[n]3c(cccc4)c4c4c3cccc4)nc3c2ccc2ccccc32)ccc1 QIVHRVCTONHPFW-UHFFFAOYSA-N 0.000 description 1
- NGMWAOYGZGNMGJ-UHFFFAOYSA-N c(cc1)cc(c2ccccc22)c1[n]2-c(cc1)cc(c2ccccc22)c1[n]2-c1ccc(C(Nc2c3ccc4c2cccc4)N=C3[n]2c(ccc(-[n]3c(cccc4)c4c4c3cccc4)c3)c3c3c2cccc3)cc1 Chemical compound c(cc1)cc(c2ccccc22)c1[n]2-c(cc1)cc(c2ccccc22)c1[n]2-c1ccc(C(Nc2c3ccc4c2cccc4)N=C3[n]2c(ccc(-[n]3c(cccc4)c4c4c3cccc4)c3)c3c3c2cccc3)cc1 NGMWAOYGZGNMGJ-UHFFFAOYSA-N 0.000 description 1
- YSSOFIUMAREEBT-UHFFFAOYSA-N c(cc1)cc(c2ccccc22)c1[n]2-c(cc1c2c3cccc2)ccc1[n]3-c(cc1)ccc1-c1nc(-c(cc2)ccc2-[n]2c(ccc(-[n]3c(cccc4)c4c4c3cccc4)c3)c3c3ccccc23)nc2c1ccc1ccccc21 Chemical compound c(cc1)cc(c2ccccc22)c1[n]2-c(cc1c2c3cccc2)ccc1[n]3-c(cc1)ccc1-c1nc(-c(cc2)ccc2-[n]2c(ccc(-[n]3c(cccc4)c4c4c3cccc4)c3)c3c3ccccc23)nc2c1ccc1ccccc21 YSSOFIUMAREEBT-UHFFFAOYSA-N 0.000 description 1
- XQAZCQWYBNAZMH-UHFFFAOYSA-N c(cc1)cc(c2ccccc22)c1[n]2-c(cc1c2c3cccc2)ccc1[n]3-c1ccc(cc(cc2)-c3nc(-[n]4c(ccc(-[n]5c(cccc6)c6c6c5cccc6)c5)c5c5ccccc45)nc4c3ccc3ccccc43)c2c1 Chemical compound c(cc1)cc(c2ccccc22)c1[n]2-c(cc1c2c3cccc2)ccc1[n]3-c1ccc(cc(cc2)-c3nc(-[n]4c(ccc(-[n]5c(cccc6)c6c6c5cccc6)c5)c5c5ccccc45)nc4c3ccc3ccccc43)c2c1 XQAZCQWYBNAZMH-UHFFFAOYSA-N 0.000 description 1
- ZNXDUEJCRQIUMR-UHFFFAOYSA-N c(cc1)cc(c2ccccc22)c1[n]2-c1cccc2c1c1ccccc1[n]2-c1ncc(ccc2c3cccc2)c3n1 Chemical compound c(cc1)cc(c2ccccc22)c1[n]2-c1cccc2c1c1ccccc1[n]2-c1ncc(ccc2c3cccc2)c3n1 ZNXDUEJCRQIUMR-UHFFFAOYSA-N 0.000 description 1
- ZHEDBIVTYGGCTN-UHFFFAOYSA-N c(cc1)ccc1-[n](c1c2cccc1)c1c2c(-c(cc2)cc3c2c2ccccc2[n]3-c2nc(c3ccccc3cc3)c3cn2)ccc1 Chemical compound c(cc1)ccc1-[n](c1c2cccc1)c1c2c(-c(cc2)cc3c2c2ccccc2[n]3-c2nc(c3ccccc3cc3)c3cn2)ccc1 ZHEDBIVTYGGCTN-UHFFFAOYSA-N 0.000 description 1
- GKTLHQFSIDFAJH-UHFFFAOYSA-N c(cc1)ccc1-[n]1c(ccc(-c2ccc3[nH]c4ccccc4c3c2)c2)c2c2ccccc12 Chemical compound c(cc1)ccc1-[n]1c(ccc(-c2ccc3[nH]c4ccccc4c3c2)c2)c2c2ccccc12 GKTLHQFSIDFAJH-UHFFFAOYSA-N 0.000 description 1
- PZFQIYRQRMUGOZ-UHFFFAOYSA-N c(cc1)ccc1-c1c(ccc2c3cccc2)c3nc(-c2cccc(-[n](c(cccc3)c3c3c4)c3ccc4-c(cc3c4ccccc44)ccc3[n]4-c3ccccc3)c2)n1 Chemical compound c(cc1)ccc1-c1c(ccc2c3cccc2)c3nc(-c2cccc(-[n](c(cccc3)c3c3c4)c3ccc4-c(cc3c4ccccc44)ccc3[n]4-c3ccccc3)c2)n1 PZFQIYRQRMUGOZ-UHFFFAOYSA-N 0.000 description 1
- OUVJHFMZVOEPQW-UHFFFAOYSA-N c(cc1c2c3ccc(-[n]4c5ccccc5c5c4cccc5)c2)ccc1[N-]3-c1cc(C(Nc2c3ccc4c2cccc4)N=C3[n]2c(ccc(-[n]3c(cccc4)c4c4c3cccc4)c3)c3c3c2cccc3)ccc1 Chemical compound c(cc1c2c3ccc(-[n]4c5ccccc5c5c4cccc5)c2)ccc1[N-]3-c1cc(C(Nc2c3ccc4c2cccc4)N=C3[n]2c(ccc(-[n]3c(cccc4)c4c4c3cccc4)c3)c3c3c2cccc3)ccc1 OUVJHFMZVOEPQW-UHFFFAOYSA-N 0.000 description 1
- CIAVFGJLOPWAFK-UHFFFAOYSA-N c(cc1c2c3ccc(-[n]4c5ccccc5c5ccccc45)c2)ccc1[N-]3-c1cc(C(NC2c(cc3)ccc3-[n]3c(ccc(-[n]4c(cccc5)c5c5c4cccc5)c4)c4c4ccccc34)=Nc3c2ccc2c3cccc2)ccc1 Chemical compound c(cc1c2c3ccc(-[n]4c5ccccc5c5ccccc45)c2)ccc1[N-]3-c1cc(C(NC2c(cc3)ccc3-[n]3c(ccc(-[n]4c(cccc5)c5c5c4cccc5)c4)c4c4ccccc34)=Nc3c2ccc2c3cccc2)ccc1 CIAVFGJLOPWAFK-UHFFFAOYSA-N 0.000 description 1
- ZVEGDTHFBGIKQG-UHFFFAOYSA-N c1ccc2[n](C3NC(c(cc4)ccc4-c4cccc(-[n](c(cccc5)c5c5c6)c5ccc6-[n]5c6ccccc6c6c5cccc6)c4)=Nc4c(cccc5)c5ccc34)c(ccc(-[n]3c(cccc4)c4c4c3cccc4)c3)c3c2c1 Chemical compound c1ccc2[n](C3NC(c(cc4)ccc4-c4cccc(-[n](c(cccc5)c5c5c6)c5ccc6-[n]5c6ccccc6c6c5cccc6)c4)=Nc4c(cccc5)c5ccc34)c(ccc(-[n]3c(cccc4)c4c4c3cccc4)c3)c3c2c1 ZVEGDTHFBGIKQG-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/649—Aromatic compounds comprising a hetero atom
- H10K85/657—Polycyclic condensed heteroaromatic hydrocarbons
- H10K85/6572—Polycyclic condensed heteroaromatic hydrocarbons comprising only nitrogen in the heteroaromatic polycondensed ring system, e.g. phenanthroline or carbazole
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
- C07D403/14—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing three or more hetero rings
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
- C09K11/025—Use of particular materials as binders, particle coatings or suspension media therefor non-luminescent particle coatings or suspension media
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/10—Non-macromolecular compounds
- C09K2211/1003—Carbocyclic compounds
- C09K2211/1011—Condensed systems
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/10—Non-macromolecular compounds
- C09K2211/1018—Heterocyclic compounds
- C09K2211/1025—Heterocyclic compounds characterised by ligands
- C09K2211/1029—Heterocyclic compounds characterised by ligands containing one nitrogen atom as the heteroatom
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/10—Non-macromolecular compounds
- C09K2211/1018—Heterocyclic compounds
- C09K2211/1025—Heterocyclic compounds characterised by ligands
- C09K2211/1029—Heterocyclic compounds characterised by ligands containing one nitrogen atom as the heteroatom
- C09K2211/1037—Heterocyclic compounds characterised by ligands containing one nitrogen atom as the heteroatom with sulfur
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/10—Non-macromolecular compounds
- C09K2211/1018—Heterocyclic compounds
- C09K2211/1025—Heterocyclic compounds characterised by ligands
- C09K2211/1044—Heterocyclic compounds characterised by ligands containing two nitrogen atoms as heteroatoms
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/10—Non-macromolecular compounds
- C09K2211/1018—Heterocyclic compounds
- C09K2211/1025—Heterocyclic compounds characterised by ligands
- C09K2211/1059—Heterocyclic compounds characterised by ligands containing three nitrogen atoms as heteroatoms
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/10—Non-macromolecular compounds
- C09K2211/1018—Heterocyclic compounds
- C09K2211/1025—Heterocyclic compounds characterised by ligands
- C09K2211/1088—Heterocyclic compounds characterised by ligands containing oxygen as the only heteroatom
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/10—Non-macromolecular compounds
- C09K2211/1018—Heterocyclic compounds
- C09K2211/1025—Heterocyclic compounds characterised by ligands
- C09K2211/1092—Heterocyclic compounds characterised by ligands containing sulfur as the only heteroatom
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/18—Metal complexes
- C09K2211/185—Metal complexes of the platinum group, i.e. Os, Ir, Pt, Ru, Rh or Pd
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K2101/00—Properties of the organic materials covered by group H10K85/00
- H10K2101/10—Triplet emission
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/30—Coordination compounds
- H10K85/341—Transition metal complexes, e.g. Ru(II)polypyridine complexes
- H10K85/342—Transition metal complexes, e.g. Ru(II)polypyridine complexes comprising iridium
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/631—Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine
Definitions
- the present invention relates to a novel compound and an organic electroluminescence device using the same.
- an organic electroluminescence (EL) element is composed of an anode, a cathode, and one or more organic thin film layers sandwiched between the anode and the cathode.
- a voltage is applied between both electrodes, electrons from the cathode side and holes from the anode side are injected into the light emitting region, and the injected electrons and holes recombine in the light emitting region to generate an excited state, which is excited.
- Light is emitted when the state returns to the ground state. Since organic EL elements can obtain various luminescent colors by using various luminescent materials in the luminescent layer, practical research on displays and the like is actively conducted. In particular, research on light emitting materials of the three primary colors of red, green, and blue is the most active, and intensive research has been conducted with the aim of improving characteristics.
- Patent Documents 1 to 5 disclose compounds having a benzoquinazoline structure.
- development of new material systems is required in order to further improve device performance.
- An object of the present invention is to provide a novel compound useful as an organic EL device material.
- a compound represented by the following formula (1) is provided.
- L 1 is a single bond or a linking group
- A is a group represented by the following formula (A)
- B is a group represented by the following formula (B)
- m is 1 to 3
- N is an integer of 1 to 4.
- m is 2 or more
- the plurality of B may be the same or different.
- n is 2 or more
- the plurality of L 1 may be the same or different
- the plurality of B may be the same or different.
- L 1 is a single bond, it indicates that A and B are directly bonded, and m is 1.
- X 1 to X 4 are each independently a nitrogen atom (N) or CRa, and two of X 1 to X 4 are nitrogen atoms.
- N of Ra and R 1 to R 6 represent a single bond that directly bonds the carbon atom in the formula (A) to which it is substituted and L 1 (or B when L 1 is a single bond).
- Ra and R 1 ⁇ R 6 wherein not a single bond of Ra and R 1 ⁇ R 6 are each independently a hydrogen atom or a substituent.
- L 11 is a single bond or a linking group.
- R 11 to R 19 represents a single bond directly bonding the carbon atom in the formula (B) to which it is substituted and L 1 (or A when L 1 is a single bond), Represents a single bond directly bonding the carbon atom in the formula (B) to which it is substituted and L 11 .
- R 11 ⁇ R 19 other than the single bond of R 11 ⁇ R 19 are each independently a hydrogen atom or a substituent.
- One of R 21 to R 29 represents a single bond that directly bonds L 11 to the carbon atom in the formula (B) that it substitutes.
- R 21 ⁇ R 29 other than the single bond of R 21 ⁇ R 29 are each independently a hydrogen atom or a substituent.
- a novel compound useful as an organic EL device material can be provided.
- the number of ring-forming carbon atoms means a compound having a structure in which atoms or molecules are bonded in a ring (for example, a monocyclic compound, a condensed ring compound, a bridged compound, a spiro ring compound, a carbocyclic compound, or a heterocyclic compound). This represents the number of carbon atoms among atoms constituting the ring itself. When the ring is substituted with a substituent, the carbon contained in the substituent is not included in the number of ring-forming carbons.
- the “ring-forming carbon number” shown below is the same unless otherwise specified.
- the benzene ring has 6 ring carbon atoms
- the naphthalene ring has 10 ring carbon atoms
- the pyridinyl group has 5 ring carbon atoms
- the furanyl group has 4 ring carbon atoms.
- the carbon number of the alkyl group is not included in the number of ring-forming carbons.
- the carbon number of the fluorene ring as a substituent is not included in the number of ring-forming carbons.
- the number of ring-forming atoms is a compound (for example, a monocyclic compound, a condensed ring compound, a bridging compound, a spiro ring compound, or a carbocyclic compound) having a structure in which atoms or molecules are bonded in a ring (for example, a monocyclic ring, a condensed ring, or a ring assembly).
- a heterocyclic compound represents the number of atoms constituting the ring itself.
- An atom that does not constitute a ring for example, a hydrogen atom that terminates a bond of an atom that constitutes a ring
- an atom contained in a substituent when the ring is substituted by a substituent is not included in the number of ring-forming atoms.
- the “number of ring-forming atoms” described below is the same unless otherwise specified.
- the pyridine ring has 6 ring atoms
- the quinazoline ring has 10 ring atoms
- the furan ring has 5 ring atoms.
- a hydrogen atom bonded to a carbon atom of a pyridine ring or a quinazoline ring or an atom constituting a substituent is not included in the number of ring-forming atoms.
- a fluorene ring is bonded to the fluorene ring as a substituent (including a spirofluorene ring)
- the number of atoms of the fluorene ring as a substituent is not included in the number of ring-forming atoms.
- the ring is separated at a position where the carbon number of one substituent is the smallest within the above range, and the carbon number of the other substituent is also within the above range.
- Aromatic hydrocarbon ring consists of only carbon and hydrogen atoms and has aromaticity (including single rings, condensed rings, and cases where these multiple rings are bonded via a single bond)
- heteromatic ring refers to a ring having a single aromatic bond (single ring, condensed ring or a plurality of these rings containing one or more heteroatoms in addition to a carbon atom and a hydrogen atom.
- Heteroaliphatic ring means a ring containing one or more heteroatoms in addition to carbon and hydrogen atoms and having no aromaticity (monocyclic, condensed) Ring, and a case where a plurality of these rings are bonded via a single bond).
- the “carbon number XX to YY” in the expression “substituted or unsubstituted ZZ group having XX to YY” represents the number of carbon atoms in the case where the ZZ group is unsubstituted. The carbon number of the substituent is not included.
- “YY” is larger than “XX”, and “XX” and “YY” each mean an integer of 1 or more.
- “Atom number XX to YY” in the expression “ZZ group of substituted or unsubstituted atoms XX to YY” represents the number of atoms when the ZZ group is unsubstituted. The number of substituent atoms is not included.
- “YY” is larger than “XX”, and “XX” and “YY” each mean an integer of 1 or more.
- “Unsubstituted” in “substituted or unsubstituted...” Means that a hydrogen atom is bonded without being substituted with the above substituent.
- the “hydrogen atom” includes isotopes having different neutron numbers, that is, light hydrogen (protium), deuterium (deuterium) and tritium (tritium).
- the compound which is one Embodiment of this invention is represented by following formula (1).
- L 1 is a single bond or a linking group
- A is a group represented by the following formula (A)
- B is a group represented by the following formula (B)
- m is 1 N is an integer of 1 to 4
- n is an integer of 1 to 4.
- the plurality of B may be the same or different.
- the plurality of L 1 may be the same or different, and the plurality of B may be the same or different.
- L 1 is a single bond, it indicates that A and B are directly bonded, and m is 1.
- X 1 to X 4 are each independently a nitrogen atom (N) or CRa, and two of X 1 to X 4 are nitrogen atoms.
- N of Ra and R 1 to R 6 represent a single bond that directly bonds the carbon atom in the formula (A) to which it is substituted and L 1 (or B when L 1 is a single bond).
- Ra and R 1 ⁇ R 6 wherein not a single bond of Ra and R 1 ⁇ R 6 are each independently a hydrogen atom or a substituent.
- L 11 is a single bond or a linking group.
- One of R 11 to R 19 represents a single bond directly bonding the carbon atom in the formula (B) to which it is substituted and L 1 (or A when L 1 is a single bond), Represents a single bond directly bonding the carbon atom in the formula (B) to which it is substituted and L 11 .
- R 11 ⁇ R 19 other than the single bond of R 11 ⁇ R 19 are each independently a hydrogen atom or a substituent.
- One of R 21 to R 29 represents a single bond that directly bonds L 11 to the carbon atom in the formula (B) that it substitutes.
- R 21 ⁇ R 29 other than the single bond of R 21 ⁇ R 29 are each independently a hydrogen atom or a substituent.
- L 11 is a single bond
- one of R 11 to R 19 and one of R 21 to R 29 represent a single bond that directly bonds the carbon atoms in the formula (B) that each substitutes. . )
- the compound of the formula (1) has a structure represented by A and a biscarbazole structure represented by B.
- This structure improves the hole transport property of the compound. Therefore, the driving voltage can be lowered in the organic EL device to which the present compound is applied.
- the above compound improves the carrier balance. Thereby, in the organic EL element using this compound as a host material of a light emitting layer, luminous efficiency can be improved. Furthermore, the above compound has high durability. Thereby, the light emission lifetime can be improved in the organic EL element to which the present compound is applied.
- a compound represented by following formula (2) for example.
- R 1 to R 6 , X 1 to X 4 , L 1 , B, and m are the same as those in the above formula (1).
- N is 1 or 2
- n of the Ra is Represents a single bond that directly bonds the carbon atom in the formula (2) to be substituted with L 1 (or B when L 1 is a single bond).
- a benzoquinazoline structure represented by the following formula (A1) or (A2) is preferable. Thereby, it becomes the outstanding carrier balance and luminous efficiency improves.
- Ra and R 1 to R 6 are the same as those in the formula (A).
- the compound having a group represented by the above formula (A1) is represented by, for example, the following formula (A1-1) or (A1-2).
- A1-1 the following formula
- A1-2 the following formula
- Ra, R 1 to R 6 , L 1 , B and m are the same as those in the above formulas (1) and (A1).
- examples of the compound having a group represented by the above (A1) include compounds represented by the following formulas (A1-3) to (A1-6). (Wherein R 1 to R 6 , L 1 , and B are the same as in the above formulas (1) and (A1). Two Bs may be the same or different.
- Ra 1 is substituted or absent.
- a compound represented by the following formula (A1-7) or (A1-8) is preferable from the viewpoint of improving hole transportability.
- L 1 , m, Ra, R 1 to R 6 , R 11 to R 18 , R 21 to R 29 , and L 11 are the same as those in the formula (1).
- the bonding positions between two carbazoles in the biscarbazole are the 3rd and 3rd positions.
- a compound represented by the following formula (A1-9) or (A1-10) is preferable.
- L 1 , m, Ra, R 1 to R 6 , R 11 to R 18 , R 21 to R 29 , and L 11 are the same as those in the formula (1).
- the bonding positions between two carbazoles in biscarbazole are the 2nd and 3rd positions.
- a compound represented by the following formula (A1-11) or (A1-12) is preferable.
- L 1 , m, Ra, R 1 to R 6 , R 11 to R 18 , R 21 to R 29 , and L 11 are the same as those in the formula (1).
- the compound having a group represented by the above formula (A2) is represented by, for example, the following formula (A2-1) or (A2-2).
- A2-1 the following formula
- A2-2 the following formula
- Ra, R 1 to R 6 , L 1 , B and m are the same as those in the above formulas (1) and (A2).
- the bonding position between two carbazoles in biscarbazole is preferably the 2-position and 3-position, or the 3-position and 3-position.
- compounds represented by the following formulas (A2-5) to (A2-8) are preferable.
- L 1 , m, Ra, R 1 to R 6 , R 11 to R 18 , R 21 to R 29 , and L 11 are the same as those in the formula (1).
- R 1 to R 29 and Ra are each independently the following groups (A) Are preferably selected from the following group (B), more preferably selected from the following group (C).
- the group (A) is a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted ring carbon number 6 to 60 aryl groups (synonymous with “aromatic hydrocarbon group”, the same shall apply hereinafter), substituted or unsubstituted aralkyl groups having 7 to 51 carbon atoms, amino groups, substituted or unsubstituted alkyl groups having 1 to 50 carbon atoms, and Mono- or di-substituted amino group having a substituent selected from a substituted or unsubstituted aryl group having 6 to 60 carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 50 carbon atoms, a substituted or unsubstituted ring Substituents selected from aryloxy groups having 6 to 50 carbon atom
- the group (B) is a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted ring group having 6 to 6 carbon atoms.
- aryl groups substituted or unsubstituted aralkyl groups having 7 to 51 carbon atoms, amino groups, substituted or unsubstituted alkyl groups having 1 to 50 carbon atoms, and substituted or unsubstituted aryl groups having 6 to 60 ring carbon atoms
- the group (C) is a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted ring carbon number 6 to 60 aryl groups, substituted or unsubstituted aralkyl groups having 7 to 51 carbon atoms, amino groups, substituted or unsubstituted alkyl groups having 1 to 50 carbon atoms, and substituted or unsubstituted aryl groups having 6 to 60 ring carbon atoms A mono- or di-substituted amino group having a substituent selected from the group, a substituted or unsubstituted alkoxy group having 1 to 50 carbon atoms, a substituted or unsubstituted aryloxy group having 6 to 50 ring carbon atoms, substituted or unsubstituted A mono-, di- or tri-substituted alky
- a substituted or unsubstituted ring atoms 5-60 heteroaryl group a substituted or unsubstituted haloalkyl group having 1 to 50 carbon atoms, a halogen atom, a cyano group, and a group consisting of nitro group.
- alkyl group having 1 to 50 carbon atoms examples include, for example, methyl group, ethyl group, n-propyl group, isopropyl group, and n-butyl group.
- Examples of the cycloalkyl group having 3 to 50 ring carbon atoms include a cyclopropyl group, a cyclobutyl group, a cyclopentyl group, a cyclohexyl group, a cyclo A heptyl group, a cyclooctyl group, an adamantyl group etc. are mentioned, A cyclopentyl group and a cyclohexyl group are preferable.
- Examples of the aryl group having 6 to 60 ring carbon atoms include, for example, a phenyl group, a naphthyl group, a naphthylphenyl group, and a biphenylyl group.
- Terphenylyl group acenaphthylenyl group, anthryl group, benzoanthryl group, aceanthryl group, phenanthryl group, benzophenanthryl group, phenalenyl group, fluorenyl group, 9,9'-spirobifluorenyl group, benzofluorenyl Group, dibenzofluorenyl group, picenyl group, pentaphenyl group, pentacenyl group, pyrenyl group, chrycenyl group, benzocricenyl group, s-indacenyl group, as-indacenyl group, fluoranthenyl group, benzofluoranthenyl group, tetracenyl group , Triphenylenyl group, benzotriphenylenyl Group, perylenyl group, coronyl group, and dibenzo anthryl group and the like.
- Examples of the substituted or unsubstituted aralkyl group having 7 to 51 carbon atoms include the above-described aralkyl groups having an aryl group having 6 to 50 ring carbon atoms (preferably 6 to 25, more preferably 6 to 18).
- aryl groups include mono-substituted or di-substituted amino groups having a substituent selected from the above alkyl group and aryl group.
- Examples of the substituted or unsubstituted alkoxy group having 1 to 50 carbon atoms include the above-described alkoxy groups having an alkyl group having 1 to 50 carbon atoms (preferably 1 to 18, more preferably 1 to 8).
- Examples of the substituted or unsubstituted aryloxy group having 6 to 50 ring carbon atoms include an aryloxy group having an aryl group having 6 to 50 ring carbon atoms (preferably 6 to 25, more preferably 6 to 18) described above. Is mentioned.
- the mono-substituted, di-substituted or tri-substituted silyl groups having a substituent selected from 6-18) aryl groups include mono-substituted, di-substituted or tri-substituted silyl groups having a substituent selected from the above alkyl group and aryl group. Groups.
- the heteroaryl group having 5 to 60 ring atoms (preferably 5 to 24, more preferably 5 to 13 ring atoms) is at least 1, preferably 1 to 5 (more preferably 1 to 3, More preferably, it contains 1 to 2) heteroatoms such as nitrogen atom, sulfur atom, oxygen atom and phosphorus atom.
- heteroaryl group examples include pyrrolyl group, furyl group, thienyl group, pyridyl group, pyridazinyl group, pyrimidinyl group, pyrazinyl group, triazinyl group, imidazolyl group, oxazolyl group, thiazolyl group, isoxazolyl group, isothiazolyl group, Oxadiazolyl group, thiadiazolyl group, triazolyl group, tetrazolyl group, indolyl group, isoindolyl group, benzofuranyl group, isobenzofuranyl group, benzothiophenyl group, isobenzothiophenyl group, indolizinyl group, quinolidinyl group, quinolyl group, isoquinolyl group , Cinnolyl, phthalazinyl, quinazolinyl, quinoxalinyl, benzimidazolyl, benzo
- a pyridyl group Preferable are a pyridyl group, a pyrimidinyl group, a triazinyl group, a quinazolinyl group, a carbazolyl group, a dibenzothiophenyl group, and a dibenzofuranyl group.
- the “carbazolyl group” includes the following structures.
- X and Y are each an oxygen atom, a sulfur atom, a nitrogen atom or a —NH— group.
- heteroaryl group having 5 to 60 ring atoms a monovalent group obtained by removing one hydrogen atom from any compound represented by the following formula is also preferable.
- A independently represents CR 100 or a nitrogen atom, and R 100 each independently represents a hydrogen atom or a substituent, Each Y independently represents a single bond, C (R 101 ) (R 102 ), an oxygen atom, a sulfur atom or N (R 103 ); R 101 , R 102 and R 103 each independently represents a hydrogen atom or a substituent, and m independently represents 0 or 1.
- Examples of the substituent in the above formula include the same ones as described above.
- one or more hydrogen atoms of the alkyl group are halogen atoms (fluorine atoms, chlorine atoms, And those substituted with a bromine atom or an iodine atom).
- aryl groups include a sulfonyl group having a substituent selected from the above alkyl group or the above aryl group.
- Examples of the disubstituted phosphoryl group having a substituent selected from 6-18) aryl groups include a disubstituted phosphoryl group having a substituent selected from the above alkyl group and the above aryl group.
- a substituted or unsubstituted aryl group or a substituted or unsubstituted heteroaryl is preferable.
- the substituent represented by Ra is preferably a substituted or unsubstituted aryl group.
- the linking group represented by L 1 and L 11 is preferably a substituted or unsubstituted aromatic hydrocarbon ring.
- the aromatic hydrocarbon ring group include a divalent group obtained by removing one hydrogen atom from an aryl group having 6 to 50 ring carbon atoms of the substituent represented by R 1 or the like described above.
- L 1 is preferably a substituted or unsubstituted arylene group having 6 to 30 ring carbon atoms, and for example, a phenylene group, a biphenylene group, or a naphthylene group is preferable. Of the phenylenes, m-phenylene is preferred.
- L 11 is preferably a single bond.
- the formula (B) is represented by the following formula (B ′). (Wherein R 11 to R 19 and R 21 to R 29 are the same as those in the formula (B)).
- the optional substituent when referred to as “substituted or unsubstituted” is an alkyl group having 1 to 50 carbon atoms (preferably 1 to 18, more preferably 1 to 8); 3 to 50 ring carbon atoms (preferably A cycloalkyl group having 3 to 10, more preferably 3 to 8, and further preferably 5 or 6; an aryl group having 6 to 50 ring carbon atoms (preferably 6 to 25, more preferably 6 to 18); ring formation An aralkyl group having 7 to 51 (preferably 7 to 30, more preferably 7 to 20) carbon atoms having an aryl group having 6 to 50 carbon atoms (preferably 6 to 25, more preferably 6 to 18); an amino group; It is selected from an alkyl group having 1 to 50 carbon atoms (preferably 1 to 18, more preferably 1 to 8) and an aryl group having 6 to 50 ring carbon atoms (preferably 6 to 25, more preferably 6 to 18).
- the compound represented by the formula (1) is suitable as a material for an organic EL device.
- the content of the compound in the organic EL device material is not particularly limited, and may be, for example, 1% by mass or more, preferably 10% by mass or more, and more preferably 50% by mass or more. More preferably, it is 80 mass% or more, 90 mass% or more is especially preferable, and 100 mass% may be sufficient.
- materials other than the said compound the material used with the light emitting layer mentioned later, an electron carrying layer, a positive hole transport layer, etc. is mentioned.
- the compound of the present invention can be used, for example, as a host material and a dopant material in a light emitting layer of a fluorescent light emitting unit or as a host material in a light emitting layer of a phosphorescent light emitting unit.
- a host material and a dopant material in a light emitting layer of a fluorescent light emitting unit or as a host material in a light emitting layer of a phosphorescent light emitting unit.
- an anode-side organic thin film layer provided between the anode of the organic EL element and the light emitting layer, or a cathode provided between the cathode of the organic EL element and the light emitting layer.
- the “light emitting unit” means a minimum unit that includes one or more organic layers, one of which is a light emitting layer, and can emit light by recombination of injected holes and electrons.
- An organic EL device has one or more organic thin film layers containing a light emitting layer between a cathode and an anode, and at least one of the organic thin film layers is the above-described one according to the present invention. It is characterized by including a compound.
- the organic thin film layer containing the compound of the present invention include an anode-side organic thin film layer (hole transport layer, hole injection layer, etc.) provided between the anode and the light emitting layer, a light emitting layer, a cathode and a light emitting layer.
- a cathode-side organic thin film layer (electron transport layer, electron injection layer, etc.), a space layer, a barrier layer, and the like provided between them, but are not limited thereto.
- the compound of the present invention may be contained in any of the above layers, for example, a host material or a dopant material in the light emitting layer of the fluorescent light emitting unit, a host material in the light emitting layer of the phosphorescent light emitting unit, or a hole transport layer of the light emitting unit. It can be used as an electron transport layer or the like.
- the compound of the present invention is particularly suitable as a host material in a light emitting layer of a phosphorescent light emitting unit.
- the organic EL element of the present invention may be a fluorescent or phosphorescent monochromatic light emitting element, a fluorescent / phosphorescent hybrid white light emitting element, or a simple type having a single light emitting unit.
- a tandem type having a plurality of light emitting units may be used, and among them, a phosphorescent type is preferable.
- the following element structure can be mentioned as a typical element structure of a simple type organic EL element.
- Anode / light emitting unit / cathode The above light emitting unit may be a laminated type having a plurality of phosphorescent light emitting layers and fluorescent light emitting layers. In that case, the light emitting unit is generated by a phosphorescent light emitting layer between the light emitting layers. In order to prevent the excitons from diffusing into the fluorescent light emitting layer, a space layer may be provided. A typical layer structure of the light emitting unit is shown below.
- A Hole transport layer / light emitting layer (/ electron transport layer)
- B Hole transport layer / first phosphorescent light emitting layer / second phosphorescent light emitting layer (/ electron transport layer)
- C Hole transport layer / phosphorescent layer / space layer / fluorescent layer (/ electron transport layer)
- D Hole transport layer / first phosphorescent light emitting layer / second phosphorescent light emitting layer / space layer / fluorescent light emitting layer (/ electron transport layer)
- E Hole transport layer / first phosphorescent light emitting layer / space layer / second phosphorescent light emitting layer / space layer / fluorescent light emitting layer (/ electron transport layer)
- F Hole transport layer / phosphorescent layer / space layer / first fluorescent layer / second fluorescent layer (/ electron transport layer)
- G Hole transport layer / electron barrier layer / light emitting layer (/ electron transport layer)
- H Hole transport layer / light emitting layer / hole barrier layer (
- Each phosphorescent or fluorescent light-emitting layer may have a different emission color.
- hole transport layer / first phosphorescent light emitting layer (red light emitting) / second phosphorescent light emitting layer (green light emitting) / space layer / fluorescent light emitting layer (blue light emitting) / Examples include a layer configuration such as an electron transport layer.
- An electron barrier layer may be appropriately provided between each light emitting layer and the hole transport layer or space layer.
- a hole blocking layer may be appropriately provided between each light emitting layer and the electron transport layer.
- the following element structure can be mentioned as a typical element structure of a tandem type organic EL element.
- the intermediate layer is generally called an intermediate electrode, an intermediate conductive layer, a charge generation layer, an electron extraction layer, a connection layer, or an intermediate insulating layer, and has electrons in the first light emitting unit and holes in the second light emitting unit.
- a known material structure to be supplied can be used.
- FIG. 1 shows a schematic configuration of an example of an organic EL element according to the present invention.
- the organic EL element 1 includes a substrate 2, an anode 3, a cathode 4, and a light emitting unit 10 disposed between the anode 3 and the cathode 4.
- the light emitting unit 10 includes a light emitting layer 5 including at least one phosphorescent light emitting layer including a phosphorescent host material and a phosphorescent dopant.
- a hole injection / transport layer 6 or the like may be formed between the light emitting layer 5 and the anode 3, and an electron injection / transport layer 7 or the like may be formed between the light emitting layer 5 and the cathode 4.
- an electron barrier layer may be provided on the anode 3 side of the light emitting layer 5, and a hole barrier layer may be provided on the cathode 4 side of the light emitting layer 5.
- a host combined with a fluorescent dopant is referred to as a fluorescent host
- a host combined with a phosphorescent dopant is referred to as a phosphorescent host.
- the fluorescent host and the phosphorescent host are not distinguished only by the molecular structure. That is, the phosphorescent host means a material constituting a phosphorescent light emitting layer containing a phosphorescent dopant, and does not mean that it cannot be used as a material constituting a fluorescent light emitting layer. The same applies to the fluorescent host.
- the organic EL element of the present invention only needs to have a layer using the above-described compound of the present invention, and other configurations are not particularly limited, and known materials and the like can be used.
- the material applied to the organic EL element of this invention is not limited to the following.
- substrate The substrate is used as a support for the light emitting element.
- the substrate for example, glass, quartz, plastic, or the like can be used.
- a flexible substrate may be used.
- the flexible substrate is a substrate that can be bent (flexible), and examples thereof include a plastic substrate made of polycarbonate or polyvinyl chloride.
- anode For the anode formed on the substrate, it is preferable to use a metal, an alloy, an electrically conductive compound, a mixture thereof, or the like having a high work function (specifically, 4.0 eV or more).
- a metal, an alloy, an electrically conductive compound, a mixture thereof, or the like having a high work function (specifically, 4.0 eV or more).
- ITO indium tin oxide
- ITO indium oxide-tin oxide containing silicon or silicon oxide
- indium oxide-zinc oxide silicon oxide
- tungsten oxide and indium oxide containing zinc oxide.
- graphene graphene.
- gold (Au), platinum (Pt), a nitride of a metal material (for example, titanium nitride), or the like can be given.
- the hole injection layer is a layer containing a substance having a high hole injection property.
- Substances with high hole injection properties include molybdenum oxide, titanium oxide, vanadium oxide, rhenium oxide, ruthenium oxide, chromium oxide, zirconium oxide, hafnium oxide, tantalum oxide, silver oxide, Tungsten oxide, manganese oxide, aromatic amine compound, or high molecular compound (oligomer, dendrimer, polymer, etc.) can also be used.
- the hole transport layer is a layer containing a substance having a high hole transport property.
- An aromatic amine compound, a carbazole derivative, an anthracene derivative, or the like can be used for the hole transport layer.
- a high molecular compound such as poly (N-vinylcarbazole) (abbreviation: PVK) or poly (4-vinyltriphenylamine) (abbreviation: PVTPA) can also be used.
- PVK N-vinylcarbazole
- PVTPA poly (4-vinyltriphenylamine
- the layer containing a substance having a high hole-transport property is not limited to a single layer, and two or more layers containing the above substances may be stacked.
- the light-emitting layer is a layer including a substance having high light-emitting properties, and various materials can be used.
- a fluorescent compound that emits fluorescence or a phosphorescent compound that emits phosphorescence can be used as the substance having high light-emitting property.
- a fluorescent compound is a compound that can emit light from a singlet excited state
- a phosphorescent compound is a compound that can emit light from a triplet excited state.
- a blue fluorescent material that can be used for the light emitting layer pyrene derivatives, styrylamine derivatives, chrysene derivatives, fluoranthene derivatives, fluorene derivatives, diamine derivatives, triarylamine derivatives, and the like can be used.
- An aromatic amine derivative or the like can be used as a green fluorescent material that can be used for the light emitting layer.
- Tetracene derivatives, diamine derivatives, and the like can be used as red fluorescent materials that can be used for the light emitting layer.
- a blue phosphorescent material that can be used for the light emitting layer a metal complex such as an iridium complex, an osmium complex, or a platinum complex is used.
- An iridium complex or the like is used as a green phosphorescent material that can be used in the light emitting layer.
- a metal complex such as an iridium complex, a platinum complex, a terbium complex, or a europium complex is used.
- the light emitting layer preferably contains the compound of the present invention as a host material.
- the light emitting layer is preferably composed of a host material and a phosphorescent light emitting material, and the host material is the compound of the present invention.
- the compound of the present invention preferably has a lowest excited triplet energy of 2.2 to 3.2 eV, more preferably 2.5 to 3.2 eV.
- the “triplet energy” refers to the energy difference between the lowest excited triplet state and the ground state.
- iridium (Ir), osmium (Os), ruthenium (Ru), or platinum (Pt) is used in that the phosphorescent quantum yield is high and the external quantum efficiency of the light-emitting element can be further improved.
- It is preferably a compound containing, more preferably a metal complex such as an iridium complex, an osmium complex, a ruthenium complex, or a platinum complex, more preferably an iridium complex or a platinum complex, and selected from iridium, osmium Os, and platinum Pt.
- a metal complex such as an iridium complex, an osmium complex, a ruthenium complex, or a platinum complex, more preferably an iridium complex or a platinum complex, and selected from iridium, osmium Os, and platinum Pt.
- orthometalated complexes of metal atoms are most preferred.
- metal complexes such as iridium complex, osmium complex, ruthenium complex and platinum complex are shown below.
- the abbreviations PQIr iridium (III) bis (2-phenylquinolyl-N, C 2 ′ ) acetylacetonate) and Ir (ppy) 3 (tris (2-phenylpyridinato-N, C2 ′) iridium (under specific examples) III)
- Me represents a methyl group.
- a complex represented by the following formula (X) or (Y) is preferable as the phosphorescent material.
- R is a hydrogen atom or a substituent
- k is an integer of 1 to 4.
- M is Ir, Os, or Pt. Examples of the substituent represented by R include the same substituents as exemplified by R 1 and the like of the above formula (1).
- the light-emitting layer may have a structure in which the above-described highly light-emitting substance (guest material) is dispersed in another substance (host material).
- Various materials can be used as a material for dispersing a highly luminescent substance.
- the lowest unoccupied orbital level (LUMO level) is higher than that of a highly luminescent substance, and the highest occupied orbital level ( It is preferable to use a substance having a low HOMO level.
- Substances (host materials) for dispersing highly luminescent substances include 1) metal complexes such as aluminum complexes, beryllium complexes, or zinc complexes, 2) oxadiazole derivatives, benzimidazole derivatives, phenanthroline derivatives, etc. Heterocyclic compounds, 3) condensed aromatic compounds such as carbazole derivatives, anthracene derivatives, phenanthrene derivatives, pyrene derivatives, or chrysene derivatives, 3) aromatic amine compounds such as triarylamine derivatives, or condensed polycyclic aromatic amine derivatives used.
- the electron transport layer is a layer containing a substance having a high electron transport property.
- metal complexes such as aluminum complexes, beryllium complexes, and zinc complexes
- heteroaromatic compounds such as imidazole derivatives, benzimidazole derivatives, azine derivatives, carbazole derivatives, and phenanthroline derivatives
- 3) polymer compounds can be used.
- the electron injection layer is a layer containing a substance having a high electron injection property.
- the electron injection layer includes an alkali metal such as lithium (Li), lithium fluoride (LiF), cesium fluoride (CsF), calcium fluoride (CaF 2 ), lithium oxide (LiOx), or an alkaline earth metal. Or compounds thereof.
- cathode For the cathode, it is preferable to use a metal, an alloy, an electrically conductive compound, a mixture thereof, or the like having a small work function (specifically, 3.8 eV or less).
- cathode materials include elements belonging to Group 1 or Group 2 of the Periodic Table of Elements, that is, alkali metals such as lithium (Li) and cesium (Cs), and alkaline earth such as magnesium (Mg). And other rare earth metals such as alloys, alloys containing them (for example, MgAg, AlLi), and alloys containing these.
- the method for forming each layer of the organic EL element of the present invention is not particularly limited. Conventionally known methods such as vacuum deposition and spin coating can be used.
- the organic thin film layer containing the compound of the present invention used in the organic EL device of the present invention can be prepared by vacuum deposition, molecular beam deposition (MBE method), dipping of a solution obtained by dissolving the compound of the present invention in a solvent, spin It can be formed by a known method such as a coating method, a casting method, a bar coating method, a roll coating method or the like.
- the film thickness of each organic layer of the organic EL device of the present invention is not particularly limited. Generally, if the film thickness is too thin, defects such as pinholes are likely to occur. Conversely, if it is too thick, a high applied voltage is required and the efficiency is deteriorated. Therefore, the range of several nm to 1 ⁇ m is usually preferable.
- a method for forming a layer containing the compound of the present invention for example, a method of forming a film of a solution comprising the compound of the present invention and other materials such as a dopant as required is preferable.
- a known coating method can be used effectively.
- spin coating method, casting method, micro gravure coating method, gravure coating method, bar coating method, roll coating method, slit coating method, wire bar examples thereof include a coating method, a dip coating method, a spray coating method, a screen printing method, a flexographic printing method, an offset printing method, an ink jet method, and a nozzle printing method.
- a screen printing method, a flexographic printing method, an offset printing method, and an ink jet printing method are preferable. Film formation by these methods can be performed under conditions well known to those skilled in the art.
- heating upper limit 250 ° C.
- drying under vacuum may be performed to remove the solvent, and polymerization reaction by light or high temperature heating exceeding 250 ° C. is unnecessary. Therefore, it is possible to suppress deterioration of the performance of the element due to light or high temperature heating exceeding 250 ° C.
- the film-forming solution only needs to contain at least one kind of the compound of the present invention, and includes additives such as other hole transport materials, electron transport materials, light-emitting materials, acceptor materials, solvents, and stabilizers. You may go out.
- the film-forming solution contains additives for adjusting the viscosity and / or surface tension, such as thickeners (high molecular weight compounds, etc.), viscosity reducing agents (low molecular weight compounds, etc.), surfactants, and the like. May be.
- antioxidants which do not influence the performance of organic EL elements, such as a phenolic antioxidant and phosphorus antioxidant.
- the content of the compound of the present invention in the film-forming solution is preferably from 0.1 to 15% by weight, more preferably from 0.5 to 10% by weight, based on the whole film-forming solution.
- High molecular weight compounds that can be used as thickeners include insulating resins such as polystyrene, polycarbonate, polyarylate, polyester, polyamide, polyurethane, polysulfone, polymethyl methacrylate, polymethyl acrylate, and cellulose, copolymers thereof, poly Examples thereof include photoconductive resins such as —N-vinylcarbazole and polysilane, and conductive resins such as polythiophene and polypyrrole.
- Examples of the solvent for the film-forming solution include chloro solvents such as chloroform, methylene chloride, 1,2-dichloroethane, 1,1,2-trichloroethane, chlorobenzene, o-dichlorobenzene; tetrahydrofuran, dioxane, dioxolane, anisole and the like.
- Ether solvents aromatic hydrocarbon solvents such as toluene and xylene; cyclohexane, methylcyclohexane, n-pentane, n-hexane, n-heptane, n-octane, n-nonane, n-decane, etc.
- Aliphatic hydrocarbon solvents such as acetone, methyl ethyl ketone, cyclohexanone, benzophenone and acetophenone; ester solvents such as ethyl acetate, butyl acetate, ethyl cellosolve acetate, methyl benzoate and phenyl acetate; ethylene Glycol, ethylene glycol Polyhydric alcohols such as butyl ether, ethylene glycol monoethyl ether, ethylene glycol monomethyl ether, dimethoxyethane, propylene glycol, diethoxymethane, triethylene glycol monoethyl ether, glycerin, 1,2-hexanediol and derivatives thereof; methanol, Examples thereof include alcohol solvents such as ethanol, propanol, isopropanol and cyclohexanol; sulfoxide solvents such as dimethyl sulfoxide; amide solvents such as
- aromatic hydrocarbon solvents aromatic hydrocarbon solvents, ether solvents, aliphatic hydrocarbon solvents, ester solvents, ketone solvents are preferable from the viewpoints of solubility, film formation uniformity, viscosity characteristics, and the like.
- the organic EL device of the present invention can be used in a panel module used for various displays as a light emitting device.
- the organic EL device of the present invention can be used for display devices such as televisions, portable terminals, personal computers, and electronic devices such as lighting.
- ⁇ -Tetralone (3,4-dihydro-1 (2H) -naphthalenone) (7.62 g, 52 mmol) and benzaldehyde (5.53 g, 52 mmol) were dissolved in ethanol (100 mL), and sodium hydroxide (0.20 g, 5 mmol, 0.0 mmol) was added and stirred at room temperature for 8 hours.
- the produced powder was collected by filtration, washed with methanol until the liquid became colorless, and dried under vacuum to obtain chalcone intermediate C1 (9.13 g, yield 75%).
- This chalcone intermediate C1 (4.43 g, 18.9 mmol), 3-bromobenzamidine hydrochloride (4.45 g, 18.9 mmol), sodium hydroxide (0.83 g, 20.8 mmol) in ethanol (190 mL)
- ethanol 190 mL
- the mixture was reacted for 8 hours under heating and reflux.
- the resulting powder was collected by filtration, washed with methanol and dried in vacuo.
- 2,3-Dichloro-5,6-dicyano-p-benzoquinone (DDQ) (4.90 g, 21.6 mmol) was added to orthodichlorobenzene (100 mL) and reacted at 120 ° C. for 5 hours.
- ⁇ -Tetralone (3,4-dihydro-1 (2H) -naphthalenone) (7.50 g, 51.3 mmol) and 3-bromobenzaldehyde (9.49 g, 51.3 mmol) were dissolved in ethanol (100 mL) and hydroxylated. Sodium (0.20 g, 5 mmol) was added and stirred at room temperature for 8 hours. The produced powder was collected by filtration, washed with methanol until the liquid became colorless, and dried under vacuum to obtain chalcone intermediate C2 (14.10 g, yield 88%).
- the target compound 5 (1.81 g, yield 82%) was prepared in the same manner as in Example 4 except that the biscarbazolyl intermediate A2 (1.29 g, 3.15 mmol) was used instead of the biscarbazolyl intermediate A1.
- a benzoquinazoline intermediate B6 was obtained in the same manner as in Example 4 except that 4-bromobenzaldehyde was used instead of 3-bromobenzaldehyde.
- the same operation as in Example 6 was performed using bicarbazolyl intermediate A2 (1.80 g, 4.40 mmol) and benzoquinazoline intermediate B6 (1.03 g, 2.10 mmol), and compound 7 (2.02 g, yield). 84%).
- HPLC purity 99.97%
- a benzoquinazoline intermediate B7 was obtained in the same manner as in Example 1 except that 4-bromobenzaldehyde was used instead of 3-bromobenzamidine hydrochloride.
- Bicarbazolyl intermediate A1 (1.29 g, 3.15 mmol) and benzoquinazoline intermediate B7 (1.23 g, 3.00 mmol) were used in the same manner as in Example 1 to obtain compound 8 (1.68 g, yield). 76%).
- HPLC purity 99.52%
- This intermediate C4 (4.69 g, 20 mmol), 3-bromobenzamidine hydrochloride (4.71 g, 20 mmol) and sodium hydroxide (0.88 g, 22 mmol) were reacted in ethanol (200 mL) with heating under reflux for 8 hours. I let you. The resulting powder was collected by filtration, washed with methanol and dried in vacuo. To this powder, 2,3-dichloro-5,6-dicyano-p-benzoquinone (DDQ) (9.08 g, 40 mmol) was added in orthodichlorobenzene (80 mL), reacted at 120 ° C. for 5 hours, and cooled to room temperature.
- DDQ 2,3-dichloro-5,6-dicyano-p-benzoquinone
- Example 10 The same operation as in Example 10 was carried out, except that 4-bromobenzamidine hydrochloride was used instead of 3-bromobenzamidine hydrochloride, to obtain benzoquinazoline intermediate B9 (4.32 g, yield 52%). It was.
- the same operation as in Example 1 was carried out using bicarbazolyl intermediate A2 (1.29 g, 3.15 mmol) and benzoquinazoline intermediate B9 (1.23 g, 3.00 mmol) to give compound 11 (1.82 g, yield) 82%).
- Example 10 The same operation as in Example 10 was carried out except that 3,5-dichlorobromobenzamidine hydrochloride (4.52 g, 20 mmol) was used in place of 3-bromobenzamidine hydrochloride, and benzoquinazoline intermediate B10 (4 .10 g, yield 51%).
- Example 3 The same operation as in Example 3 was carried out using bicarbazolyl intermediate A2 (1.80 g, 4.40 mmol) and benzoquinazoline intermediate B10 (0.84 g, 2.10 mmol) to give compound 12 (2.00 g, yield 83). %).
- Example 10 The same operation as in Example 10 was carried out, except that 4-bromobenzaldehyde (9.25 g, 50 mmol) was used in place of benzaldehyde, to obtain intermediate C5 (9.65 g, yield 31%). Using this intermediate C5 (6.26 g, 20 mmol) and 3-bromobenzamidine hydrochloride (4.71 g, 20 mmol), the same operation as in Example 10 was carried out, and benzoquinazoline intermediate B11 (6.76 g, yield) was obtained. Yield 69%).
- 2-Benzoyl-1-naphthol (12.44 g, 50 mmol) and sodium hydroxide (6.0 g, 150 mmol) were dissolved in N, N-dimethylacetamide (DMA) (75 mL) and stirred at room temperature for 1 hour.
- 2-Bromoisobutyramide (24.9 g, 150 mmol) was added, and the mixture was further stirred at room temperature for 5 hours.
- Sodium hydroxide (18.0 g, 450 mmol) was added to the reaction solution, heated to 50 ° C. for 1 hour, then water (75 mL) was added, the temperature was further raised, and the mixture was heated to reflux for 1 hour.
- the intermediate C7 (10.75 g, yield 87%) was obtained in the same manner as in Example 14 except that 1-benzoyl-2-naphthol was used instead of 2-benzoyl-1-naphthol.
- This intermediate C7 (9.89 g, 40 mmol) was used in the same manner as in Example 14 to obtain benzoquinazoline intermediate B13 (6.86 g, yield 59%).
- the same operation as in Example 1 was carried out using bicarbazolyl intermediate A2 (1.29 g, 3.15 mmol) and benzoquinazoline intermediate B13 (0.87 g, 3.00 mmol) to give compound 15 (1.82 g, yield). 92%).
- HPLC purity 99.49%
- Example 14 The same procedure as in Example 14 was performed, except that 2- (3-bromobenzoyl) -1-naphthol (16.36 g, 50 mmol) was used instead of 2-benzoyl-1-naphthol, and intermediate C8 (13 .86 g, yield 85%).
- This intermediate C8 (13.05 g, 40 mmol) was used in the same manner as in Example 14 to obtain benzoquinazoline intermediate B14 (9.31 g, yield 63%).
- the same operation as in Example 3 was carried out using bicarbazolyl intermediate A2 (1.80 g, 4.40 mmol) and benzoquinazoline intermediate B14 (0.78 g, 2.10 mmol) to give compound 16 (1.91 g, yield). 85%).
- Example 17 A glass substrate with an ITO transparent electrode of 25 mm ⁇ 75 mm ⁇ thickness 1.1 mm (manufactured by Geomatic Co., Ltd.) was subjected to ultrasonic cleaning in isopropyl alcohol for 5 minutes and then UV ozone cleaning for 30 minutes. The cleaned glass substrate with a transparent electrode line of 130 nm is attached to a substrate holder of a vacuum evaporation apparatus, and first the first hole transport material is formed so as to cover the transparent electrode on the surface on which the transparent electrode line is formed. The following compound HT-1 was deposited as a first hole transport layer having a thickness of 45 nm.
- the following compound HT-2 was deposited as a second hole transport material to form a second hole transport layer having a thickness of 10 nm. Further, on the second hole transport layer, the compound 4 obtained in Example 4 as a host material and the following compound RD-1 as a phosphorescent material were co-evaporated to form a phosphorescent layer having a thickness of 40 nm. did. The concentration of Compound RD-1 in the light emitting layer was 5.0% by mass. This co-deposited film functions as a light emitting layer. All the operations for forming the light emitting layer were performed in a glove box in a nitrogen atmosphere. Following the formation of the light emitting layer, the following compound ET-1 was formed to a thickness of 40 nm.
- This compound ET-1 film functions as a first electron transport layer.
- LiF was deposited as an electron injecting electrode (cathode) at a deposition rate of 0.1 angstrom / min, and the film thickness was 1 nm.
- Metal Al was vapor-deposited on this LiF film, and a metal cathode was formed with a film thickness of 80 nm.
- sealing was performed with counterbore glass in a glove box in a nitrogen atmosphere to produce an organic EL element.
- Example 18 an organic EL device was produced in the same manner as in Example 17 except that the light emitting layer was formed using the compound obtained in Example 5 instead of using Compound 4 as the host material of the light emitting layer.
- Example 17 an organic EL device was produced in the same manner as in Example 17 except that the light emitting layer was formed using the compounds shown in Table 1 instead of using Compound 4 as the host material of the light emitting layer.
- Example 17 an organic EL device was produced in the same manner as in Example 17 except that the light emitting layer was formed using the following Comparative Compound 1 instead of using Compound 4 as the host material of the light emitting layer.
- Table 1 shows the measurement results of the external quantum efficiency of the organic EL devices produced in the above examples.
- Example 28 A glass substrate with an ITO transparent electrode (manufactured by Geomat Co., Ltd.) having a size of 25 mm ⁇ 25 mm ⁇ thickness 1.1 mm was ultrasonically cleaned in isopropyl alcohol for 5 minutes, and then UV ozone cleaning was performed for 5 minutes.
- CLEVIOUS AI4083 manufactured by HERAEUS was used as a hole transport material, and a hole transport layer was formed on the ITO substrate with a thickness of 30 nm by spin coating. After film formation, unnecessary portions were removed with acetone, and then baked on a hot plate at 200 ° C. in the atmosphere for 10 minutes to prepare a base substrate.
- Example 3 The compound 3 obtained in Example 3 was used as the host material, the compound RD-1 was used as the dopant material, and the mixing ratio of the compound 3: compound RD-1 was 95: 5 by weight was 1.6 mass. % Toluene solution was prepared. Using this toluene solution, it was applied and laminated on the base substrate by spin coating so as to have a film thickness of 50 nm. After the coating film formation, unnecessary portions were removed with toluene, and dried by heating on a hot plate at 150 ° C. to prepare a coated laminated substrate on which a light emitting layer was formed. All the operations for forming the light emitting layer were performed in a glove box in a nitrogen atmosphere.
- the coated laminated substrate was conveyed into a vapor deposition chamber, and the compound ET-1 was deposited as an electron transport material by 50 nm to form an electron transport layer. Further, 1 nm of lithium fluoride and 80 nm of aluminum were deposited. After completing all the vapor deposition steps, sealing with counterbore glass was performed in a glove box in a nitrogen atmosphere to produce an organic EL device.
- Example 28 an organic EL device was produced in the same manner as in Example 28 except that the light emitting layer was formed using the compounds shown in Table 2 instead of using Compound 3 as the host material.
- An organic EL device was produced in the same manner as in Example 28 except that the following comparative compound 2 was used instead of compound 3 as the host material.
- Table 2 shows the measurement results of the external quantum efficiency of the organic EL devices produced in the above examples.
- the compound of this example has an improved carrier balance as compared with a comparative compound in which the quinazoline structure is substituted with biscarbazole.
- the light emission efficiency was improved.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Electroluminescent Light Sources (AREA)
- Plural Heterocyclic Compounds (AREA)
Abstract
Description
有機EL素子は、発光層に種々の発光材料を用いることにより、多様な発光色を得ることが可能であることから、ディスプレイ等への実用化研究が盛んである。特に赤色、緑色、青色の三原色の発光材料の研究が最も活発であり、特性向上を目指して鋭意研究がなされている。
mが2以上の場合、複数のBはそれぞれ同一でも異なっていてもよい。
nが2以上の場合、複数のL1はそれぞれ同一でも異なっていてもよく、複数のBはそれぞれ同一でも異なっていてもよい。
L1が単結合の場合、AとBとが直接結合されることを示し、かつ、mは1である。
Ra及びR1~R6のn個は、それが置換する式(A)中の炭素原子とL1(又はL1が単結合の場合のB)とを直接結合させる単結合を表す。
Ra及びR1~R6のうち前記単結合ではないRa及びR1~R6はそれぞれ独立に、水素原子又は置換基である。)
R11~R19の1つは、それが置換する式(B)中の炭素原子とL1(又はL1が単結合の場合のA)とを直接結合させる単結合を表し、他の1つは、それが置換する式(B)中の炭素原子とL11とを直接結合させる単結合を表す。
R11~R19のうち前記単結合以外のR11~R19はそれぞれ独立に、水素原子又は置換基である。
R21~R29の1つは、それが置換する式(B)中の炭素原子とL11とを直接結合させる単結合を表す。
R21~R29のうち前記単結合以外のR21~R29はそれぞれ独立に、水素原子又は置換基である。
L11が単結合の場合、R11~R19の1つ、及び、R21~R29の1つは、それぞれが置換する式(B)中の炭素原子どうしを直接結合させる単結合を表す。)
例えば、ベンゼン環は環形成炭素数が6であり、ナフタレン環は環形成炭素数が10であり、ピリジニル基は環形成炭素数5であり、フラニル基は環形成炭素数4である。また、ベンゼン環やナフタレン環に置換基として例えばアルキル基が置換している場合、当該アルキル基の炭素数は、環形成炭素数の数に含めない。また、フルオレン環に置換基として例えばフルオレン環が結合している場合(スピロフルオレン環を含む)、置換基としてのフルオレン環の炭素数は環形成炭素数の数に含めない。
環形成原子数とは、原子又は分子が環状に結合した構造(例えば単環、縮合環、環集合)の化合物(例えば、単環化合物、縮合環化合物、架橋化合物、スピロ環化合物、炭素環化合物、複素環化合物)の当該環自体を構成する原子の数を表す。環を構成しない原子(例えば、環を構成する原子の結合手を終端する水素原子)や、当該環が置換基によって置換される場合の置換基に含まれる原子は環形成原子数には含まない。以下で記される「環形成原子数」については、特筆しない限り同様とする。
例えば、ピリジン環は環形成原子数が6であり、キナゾリン環は環形成原子数が10であり、フラン環の環形成原子数が5である。ピリジン環やキナゾリン環の炭素原子にそれぞれ結合している水素原子や置換基を構成する原子については、環形成原子数の数に含めない。また、フルオレン環に置換基として例えばフルオレン環が結合している場合(スピロフルオレン環を含む)、置換基としてのフルオレン環の原子数は環形成原子数の数に含めない。
また、隣接する置換基同士で環を形成する場合は、一方の置換基の炭素数が上記の範囲内で最小となる箇所で当該環を切り離して、他方の置換基の炭素数も上記の範囲内となる構造が含まれる。以下で記される置換基の炭素数については、特筆しない限り同様とする。
「芳香族炭化水素環」とは炭素原子と水素原子のみからなり、芳香族性を有する環(単環、縮合環及びこれらの複数の環が単結合を介して結合している場合を含む)を意味し、「複素芳香族環」とは炭素原子、水素原子の他に1以上のヘテロ原子を含み、芳香族性を有する環(単環、縮合環及びこれらの複数の環が単結合を介して結合している場合を含む)を意味し、「複素脂肪族環」とは炭素原子、水素原子の他に1以上のヘテロ原子を含み、芳香族性を有しない環(単環、縮合環及びこれらの複数の環が単結合を介して結合している場合を含む)を意味する。
「置換もしくは無置換の炭素数XX~YYのZZ基」という表現における「炭素数XX~YY」は、ZZ基が無置換である場合の炭素数を表すものであり、置換されている場合の置換基の炭素数は含めない。ここで、「YY」は「XX」よりも大きく、「XX」と「YY」はそれぞれ1以上の整数を意味する。
「置換もしくは無置換の原子数XX~YYのZZ基」という表現における「原子数XX~YY」は、ZZ基が無置換である場合の原子数を表すものであり、置換されている場合の置換基の原子数は含めない。ここで、「YY」は「XX」よりも大きく、「XX」と「YY」はそれぞれ1以上の整数を意味する。
「置換もしくは無置換の・・・」における「無置換」とは、前記置換基で置換されておらず、水素原子が結合したことを意味する。
また、本発明において「水素原子」とは、中性子数が異なる同位体、即ち、軽水素(protium)、重水素(deuterium)及び三重水素(tritium)を包含する。
mが2以上の場合、複数のBはそれぞれ同一でも異なっていてもよい。
nが2以上の場合、複数のL1はそれぞれ同一でも異なっていてもよく、複数のBはそれぞれ同一でも異なっていてもよい。
L1が単結合の場合、AとBとが直接結合されることを示し、かつ、mは1である。
Ra及びR1~R6のn個は、それが置換する式(A)中の炭素原子とL1(又はL1が単結合の場合のB)とを直接結合させる単結合を表す。
Ra及びR1~R6のうち前記単結合ではないRa及びR1~R6はそれぞれ独立に、水素原子又は置換基である。)
R11~R19の1つは、それが置換する式(B)中の炭素原子とL1(又はL1が単結合の場合のA)とを直接結合させる単結合を表し、他の1つは、それが置換する式(B)中の炭素原子とL11とを直接結合させる単結合を表す。
R11~R19のうち前記単結合以外のR11~R19はそれぞれ独立に、水素原子又は置換基である。
R21~R29の1つは、それが置換する式(B)中の炭素原子とL11とを直接結合させる単結合を表す。
R21~R29のうち前記単結合以外のR21~R29はそれぞれ独立に、水素原子又は置換基である。
L11が単結合の場合、R11~R19の1つ、及び、R21~R29の1つは、それぞれが置換する式(B)中の炭素原子どうしを直接結合させる単結合を表す。)
また、上記化合物ではキャリアバランスが向上する。これにより、本化合物を発光層のホスト材として用いた有機EL素子において、発光効率を向上することができる。
さらに、上記化合物は耐久性が高い。これにより、本化合物を適用した有機EL素子において発光寿命を向上することができる。
上記(A)群とは、置換もしくは無置換の炭素数1~50のアルキル基、置換もしくは無置換の環形成炭素数3~50のシクロアルキル基、置換もしくは無置換の環形成炭素数6~60のアリール基(「芳香族炭化水素基」と同義、以下同様)、置換もしくは無置換の炭素数7~51のアラルキル基、アミノ基、置換もしくは無置換の炭素数1~50のアルキル基及び置換もしくは無置換の環形成炭素数6~60のアリール基から選ばれる置換基を有するモノ置換又はジ置換アミノ基、置換もしくは無置換の炭素数1~50のアルコキシ基、置換もしくは無置換の環形成炭素数6~50のアリールオキシ基、置換もしくは無置換の炭素数1~50のアルキル基及び置換もしくは無置換の環形成炭素数6~60のアリール基から選ばれる置換基を有するモノ置換、ジ置換又はトリ置換シリル基、置換もしくは無置換の環形成原子数5~60のヘテロアリール基(「複素環基」と同義、以下同様)、置換もしくは無置換の炭素数1~50のハロアルキル基、ハロゲン原子、シアノ基、ニトロ基、置換もしくは無置換の炭素数1~50のアルキル基及び置換もしくは無置換の環形成炭素数6~60のアリール基から選ばれる置換基を有するスルフォニル基、置換もしくは無置換の炭素数1~50のアルキル基及び置換もしくは無置換の環形成炭素数6~60のアリール基から選ばれる置換基を有するジ置換ホスフォリル基、アルキルスルホニルオキシ基、アリールスルホニルオキシ基、アルキルカルボニルオキシ基、アリールカルボニルオキシ基、ホウ素含有基、亜鉛含有基、スズ含有基、ケイ素含有基、マグネシウム含有基、リチウム含有基、ヒドロキシ基、アルキル置換又はアリール置換カルボニル基、カルボキシル基、ビニル基、(メタ)アクリロイル基、エポキシ基、並びにオキセタニル基からなる群である。
当該ヘテロアリール基としては、例えば、ピロリル基、フリル基、チエニル基、ピリジル基、ピリダジニル基、ピリミジニル基、ピラジニル基、トリアジニル基、イミダゾリル基、オキサゾリル基、チアゾリル基、ピラゾリル基、イソオキサゾリル基、イソチアゾリル基、オキサジアゾリル基、チアジアゾリル基、トリアゾリル基、テトラゾリル基、インドリル基、イソインドリル基、ベンゾフラニル基、イソベンゾフラニル基、ベンゾチオフェニル基、イソベンゾチオフェニル基、インドリジニル基、キノリジニル基、キノリル基、イソキノリル基、シンノリル基、フタラジニル基、キナゾリニル基、キノキサリニル基、ベンズイミダゾリル基、ベンズオキサゾリル基、ベンズチアゾリル基、インダゾリル基、ベンズイソキサゾリル基、ベンズイソチアゾリル基、ジベンゾフラニル基、ジベンゾチオフェニル基、カルバゾリル基、フェナントリジニル基、アクリジニル基、フェナントロリニル基、フェナジニル基、フェノチアジニル基、フェノキサジニル基、アザトリフェニレニル基、ジアザトリフェニレニル基、キサンテニル基、アザカルバゾリル基、アザジベンゾフラニル基、アザジベンゾチオフェニル基、ベンゾフラノベンゾチオフェニル基、ベンゾチエノベンゾチオフェニル基、ジベンゾフラノナフチル基、ジベンゾチエノナフチル基、及びジナフトチエノチオフェニル基等が挙げられる。好ましくは、ピリジル基、ピリミジニル基、トリアジニル基、キナゾリニル基、カルバゾリル基、ジベンゾチオフェニル基、ジベンゾフラニル基である。
Yは、それぞれ独立に、単結合、C(R101)(R102)、酸素原子、硫黄原子又はN(R103)を表し、
R101、R102及びR103は、それぞれ独立に、水素原子又は置換基を表わし、mは、それぞれ独立に、0又は1を表す。]
上記式中における置換基としては、上述のものと同様のものが挙げられる。
Raの示す置換基は、置換もしくは無置換のアリール基が好ましい。例えば、フェニル基、ナフチル基、ナフチルフェニル基、ビフェニリル基、ターフェニリル基、アセナフチレニル基、アントリル基、ベンゾアントリル基、アセアントリル基、フェナントリル基、ベンゾフェナントリル基、フェナレニル基、フルオレニル基、9,9’-スピロビフルオレニル基、ベンゾフルオレニル基、ジベンゾフルオレニル基、ピセニル基、ペンタフェニル基、ペンタセニル基、ピレニル基、クリセニル基、ベンゾクリセニル基、s-インダセニル基、as-インダセニル基、フルオランテニル基、ベンゾフルオランテニル基、テトラセニル基、トリフェニレニル基、ベンゾトリフェニレニル基、ペリレニル基、コロニル基、及びジベンゾアントリル基からなる群より選ばれるアリール基が挙げられる。
L1は、置換もしくは無置換の環形成炭素数6~30のアリーレン基であることが好ましく、例えば、フェニレン基、ビフェニレン基、又は、ナフチレン基が好ましい。フェニレンではm-フェニレンが好ましい。
これらの置換基は、さらに上述の任意の置換基により、さらに置換されていてもよい。また、これらの置換基は複数が互いに結合して環を形成してもよい。
以下に、本発明の一態様である化合物の一例を示す。
尚、「発光ユニット」とは、一層以上の有機層を含み、そのうちの一層が発光層であり、注入された正孔と電子が再結合することにより発光することができる最小単位をいう。
本発明の化合物が含まれる有機薄膜層の例としては、陽極と発光層との間に設けられる陽極側有機薄膜層(正孔輸送層、正孔注入層等)、発光層、陰極と発光層との間に設けられる陰極側有機薄膜層(電子輸送層、電子注入層等)、スペース層、障壁層等が挙げられるが、これらに限定されるものではない。本発明の化合物は、上記いずれの層に含まれていてもよく、例えば、蛍光発光ユニットの発光層におけるホスト材料やドーパント材料、燐光発光ユニットの発光層におけるホスト材料、発光ユニットの正孔輸送層、電子輸送層等として用いることができる。
本発明の化合物は、特に、燐光発光ユニットの発光層におけるホスト材料として好適である。
(1)陽極/発光ユニット/陰極
また、上記発光ユニットは、燐光発光層や蛍光発光層を複数有する積層型であってもよく、その場合、各発光層の間に、燐光発光層で生成された励起子が蛍光発光層に拡散することを防ぐ目的で、スペース層を有していてもよい。発光ユニットの代表的な層構成を以下に示す。
(a)正孔輸送層/発光層(/電子輸送層)
(b)正孔輸送層/第一燐光発光層/第二燐光発光層(/電子輸送層)
(c)正孔輸送層/燐光発光層/スペース層/蛍光発光層(/電子輸送層)
(d)正孔輸送層/第一燐光発光層/第二燐光発光層/スペース層/蛍光発光層(/電子輸送層)
(e)正孔輸送層/第一燐光発光層/スペース層/第二燐光発光層/スペース層/蛍光発光層(/電子輸送層)
(f)正孔輸送層/燐光発光層/スペース層/第一蛍光発光層/第二蛍光発光層(/電子輸送層)
(g)正孔輸送層/電子障壁層/発光層(/電子輸送層)
(h)正孔輸送層/発光層/正孔障壁層(/電子輸送層)
(i)正孔輸送層/蛍光発光層/トリプレット障壁層(/電子輸送層)
尚、各発光層と正孔輸送層あるいはスペース層との間には、適宜、電子障壁層を設けてもよい。また、各発光層と電子輸送層との間には、適宜、正孔障壁層を設けてもよい。電子障壁層や正孔障壁層を設けることで、電子又は正孔を発光層内に閉じ込めて、発光層における電荷の再結合確率を高め、寿命を向上させることができる。
(2)陽極/第一発光ユニット/中間層/第二発光ユニット/陰極
ここで、上記第一発光ユニット及び第二発光ユニットとしては、例えば、それぞれ独立に上述の発光ユニットと同様のものを選択することができる。
上記中間層は、一般的に、中間電極、中間導電層、電荷発生層、電子引抜層、接続層、中間絶縁層とも呼ばれ、第一発光ユニットに電子を、第二発光ユニットに正孔を供給する、公知の材料構成を用いることができる。
(基板)
基板は、発光素子の支持体として用いられる。基板としては、例えば、ガラス、石英、プラスチック等を用いることができる。また、可撓性基板を用いてもよい。可撓性基板とは、折り曲げることができる(フレキシブル)基板のことであり、例えば、ポリカーボネート、ポリ塩化ビニルからなるプラスチック基板等が挙げられる。
基板上に形成される陽極には、仕事関数の大きい(具体的には4.0eV以上)金属、合金、電気伝導性化合物、及びこれらの混合物等を用いることが好ましい。具体的には、例えば、酸化インジウム-酸化スズ(ITO:Indium Tin Oxide)、珪素若しくは酸化珪素を含有した酸化インジウム-酸化スズ、酸化インジウム-酸化亜鉛、酸化タングステン、及び酸化亜鉛を含有した酸化インジウム、グラフェン等が挙げられる。この他、金(Au)、白金(Pt)、又は金属材料の窒化物(例えば、窒化チタン)等が挙げられる。
正孔注入層は、正孔注入性の高い物質を含む層である。正孔注入性の高い物質としては、モリブデン酸化物、チタン酸化物、バナジウム酸化物、レニウム酸化物、ルテニウム酸化物、クロム酸化物、ジルコニウム酸化物、ハフニウム酸化物、タンタル酸化物、銀酸化物、タングステン酸化物、マンガン酸化物、芳香族アミン化合物、又は高分子化合物(オリゴマー、デンドリマー、ポリマー等)等も使用できる。
正孔輸送層は、正孔輸送性の高い物質を含む層である。正孔輸送層には、芳香族アミン化合物、カルバゾール誘導体、アントラセン誘導体等を使用する事ができる。ポリ(N-ビニルカルバゾール)(略称:PVK)やポリ(4-ビニルトリフェニルアミン)(略称:PVTPA)等の高分子化合物を用いることもできる。但し、電子よりも正孔の輸送性の高い物質であれば、これら以外のものを用いてもよい。尚、正孔輸送性の高い物質を含む層は、単層のものだけでなく、上記物質からなる層が二層以上積層したものとしてもよい。
発光層は、発光性の高い物質を含む層であり、種々の材料を用いることができる。例えば、発光性の高い物質としては、蛍光を発光する蛍光性化合物や燐光を発光する燐光性化合物を用いることができる。蛍光性化合物は一重項励起状態から発光可能な化合物であり、燐光性化合物は三重項励起状態から発光可能な化合物である。
発光層に用いることができる青色系の蛍光発光材料として、ピレン誘導体、スチリルアミン誘導体、クリセン誘導体、フルオランテン誘導体、フルオレン誘導体、ジアミン誘導体、トリアリールアミン誘導体等が使用できる。発光層に用いることができる緑色系の蛍光発光材料として、芳香族アミン誘導体等を使用できる。発光層に用いることができる赤色系の蛍光発光材料として、テトラセン誘導体、ジアミン誘導体等が使用できる。
発光層に用いることができる青色系の燐光発光材料として、イリジウム錯体、オスミウム錯体、白金錯体等の金属錯体が使用される。発光層に用いることができる緑色系の燐光発光材料としてイリジウム錯体等が使用される。発光層に用いることができる赤色系の燐光発光材料として、イリジウム錯体、白金錯体、テルビウム錯体、ユーロピウム錯体等の金属錯体が使用される。
具体例の下にある略号PQIr(iridium(III)bis(2-phenylquinolyl-N,C2’)acetylacetonate)及びIr(ppy)3(トリス(2-フェニルピリジナト-N,C2’)イリジウム(III))は、その略号の上にある有機金属錯体の略号である。
また、Meはメチル基を表す。
Rの示す置換基としては、上記式(1)のR1等で例示した置換基と同様のものが挙げられる。
発光層としては、上述した発光性の高い物質(ゲスト材料)を他の物質(ホスト材料)に分散させた構成としてもよい。発光性の高い物質を分散させるための物質としては、各種のものを用いることができ、発光性の高い物質よりも最低空軌道準位(LUMO準位)が高く、最高被占有軌道準位(HOMO準位)が低い物質を用いることが好ましい。
発光性の高い物質を分散させるための物質(ホスト材料)としては、1)アルミニウム錯体、ベリリウム錯体、若しくは亜鉛錯体等の金属錯体、2)オキサジアゾール誘導体、ベンゾイミダゾール誘導体、若しくはフェナントロリン誘導体等の複素環化合物、3)カルバゾール誘導体、アントラセン誘導体、フェナントレン誘導体、ピレン誘導体、若しくはクリセン誘導体等の縮合芳香族化合物、3)トリアリールアミン誘導体、若しくは縮合多環芳香族アミン誘導体等の芳香族アミン化合物が使用される。
電子輸送層は、電子輸送性の高い物質を含む層である。電子輸送層には、1)アルミニウム錯体、ベリリウム錯体、亜鉛錯体等の金属錯体、2)イミダゾール誘導体、ベンゾイミダゾール誘導体、アジン誘導体、カルバゾール誘導体、フェナントロリン誘導体等の複素芳香族化合物、3)高分子化合物を使用することができる。
電子注入層は、電子注入性の高い物質を含む層である。電子注入層には、リチウム(Li)、フッ化リチウム(LiF)、フッ化セシウム(CsF)、フッ化カルシウム(CaF2)、リチウム酸化物(LiOx)等のようなアルカリ金属、アルカリ土類金属、又はそれらの化合物を用いることができる。
陰極には、仕事関数の小さい(具体的には3.8eV以下)金属、合金、電気伝導性化合物、及びこれらの混合物等を用いることが好ましい。このような陰極材料の具体例としては、元素周期表の第1族又は第2族に属する元素、即ちリチウム(Li)やセシウム(Cs)等のアルカリ金属、及びマグネシウム(Mg)等のアルカリ土類金属、及びこれらを含む合金(例えば、MgAg、AlLi)等の希土類金属及びこれらを含む合金等が挙げられる。
本発明の化合物を含有する層(特に発光層)を形成する方法としては、例えば、本発明の化合物及び必要に応じてドーパント等のその他の材料からなる溶液を成膜する方法が好ましい。
成膜後は、真空下に加熱(上限250℃)乾燥して、溶媒を除去すればよく、光や250℃を超える高温加熱による重合反応は不要である。従って、光や250℃を超える高温加熱による素子の性能劣化の抑制が可能である。
成膜用溶液は、粘度及び/又は表面張力を調節するための添加剤、例えば、増粘剤(高分子量化合物等)、粘度降下剤(低分子量化合物等)、界面活性剤等を含有していてもよい。また、保存安定性を改善するために、フェノール系酸化防止剤、リン系酸化防止剤等、有機EL素子の性能に影響しない酸化防止剤を含有していてもよい。
上記成膜用溶液中の本発明の化合物の含有量は、成膜用溶液全体に対して0.1~15質量%が好ましく、0.5~10質量%がより好ましい。
また、本発明の有機EL素子は、テレビ、携帯端末、パーソナルコンピュータ等の表示装置や、照明等の電子機器に使用できる。
アルゴン雰囲気下、ビスカルバゾリル中間体A1(1.29g、3.15mmol)、ベンゾキナゾリン中間体B1(1.23g、3.00mmol)、トリス(ジベンジリデンアセトン)ジパラジウム(Pd2(dba)3)(55mg、0.06mmol)、4,5’-ビス(ジフェニルホスフィノ)-9,9’-ジメチルキサンテン(XantPhos)(69mg、0.12mmol)、t-ブトキシナトリウム(0.43g、4.5mmol)、無水キシレン(60mL)を順次加えて12時間加熱還流した。室温まで反応液を冷却した後、不溶物を濾過して除き、有機溶媒を減圧下留去した。得られた残渣をシリカゲルカラムクロマトグラフィーにて精製し、化合物1(1.78g、収率80%)を得た。
HPLC(高速液体クロマトグラフィー):純度99.45%
FD-MS(電界脱離質量分析法):calcd for C54H34N4=738
found m/z=738(M+,100)
HPLC:純度99.70%
FD-MS:calcd for C54H34N4=738、
found m/z=738(M+,100)
アルゴン雰囲気下、ビカルバゾリル中間体A2(1.80g、4.40mmol)、ベンゾキナゾリン中間体B2(0.84g、2.10mmol)、トリス(ジベンジリデンアセトン)ジパラジウム(Pd2(dba)3)(39mg、0.04mmol)、4,5’-ビス(ジフェニルホスフィノ)-9,9’-ジメチルキサンテン(49mg、0.08mmol)、t-ブトキシナトリウム(0.61g、6.3mmol)、無水キシレン(42mL)を順次加えて12時間加熱還流した。室温まで反応液を冷却した後、不溶物を濾過して除き、有機溶媒を減圧下留去した。得られた残渣をシリカゲルカラムクロマトグラフィーにて精製し、化合物3(2.02g、収率84%)を得た。
HPLC:純度99.20%
FD-MS:calcd for C84H52N6=1144、
found m/z=1144(M+,100)
カルコン中間体C2(6.26g、20.0mmol)、ベンズアミジン塩酸塩(3.13g、20.0mmol)、水酸化ナトリウム(0.88g、22mmol)をエタノール(100mL)中、加熱還流下8時間反応させた。生成した粉末を濾取し、メタノールで洗浄し、真空乾燥した。この粉末をオルトジクロロベンゼン(100mL)中、2,3-ジクロロ-5,6-ジシアノ-p-ベンゾキノン(5.0g、22mmol)を加えて120℃で5時間反応させ、室温まで冷却した後、シリカゲルカラムクロマトグラフィーにて精製し、ベンゾキナゾリン中間体B3(5.52g、収率67%)を得た。
アルゴン雰囲気下、ビスカルバゾリル中間体A1(1.29g、3.15mmol)、ベンゾキナゾリン中間体B3(1.23g、3.00mmol)、トリス(ジベンジリデンアセトン)ジパラジウム(55mg、0.06mmol)、4,5’-ビス(ジフェニルホスフィノ)-9,9’-ジメチルキサンテン(69mg、0.12mmol)、t-ブトキシナトリウム(0.43g、4.5mmol)、無水キシレン(60mL)を順次加えて12時間加熱還流した。室温まで反応液を冷却した後、不溶物を濾過して除き、有機溶媒を減圧下留去した。得られた残渣をシリカゲルカラムクロマトグラフィーにて精製し、化合物4(1.64g、収率74%)を得た。
HPLC:純度99.76%
FD-MS:calcd for C54H34N4=738、
found m/z=738(M+,100)
HPLC:純度99.23%
FD-MS:calcd for C54H34N4=738、
found m/z=738(M+,100)
アルゴン雰囲気下、ビスカルバゾリル中間体A2(1.80g、4.40mmol)、ベンゾキナゾリン中間体B4(1.03g、2.10mmol)、トリス(ジベンジリデンアセトン)ジパラジウム(39mg、0.04mmol)、4,5’-ビス(ジフェニルホスフィノ)-9,9’-ジメチルキサンテン(49mg、0.08mmol)、t-ブトキシナトリウム(0.61g、6.3mmol)、無水キシレン(42mL)を順次加えて12時間加熱還流した。室温まで反応液を冷却した後、不溶物を濾過して除き、有機溶媒を減圧下留去した。得られた残渣をシリカゲルカラムクロマトグラフィーにて精製し、化合物6(2.12g、収率88%)を得た。
HPLC:純度99.07%
FD-MS:calcd for C84H52N6=1144
found m/z=1144(M+,100)
ビカルバゾリル中間体A2(1.80g、4.40mmol)、ベンゾキナゾリン中間体B6(1.03g、2.10mmol)を用いて実施例6と同様の操作を行い、化合物7(2.02g、収率84%)を得た。
HPLC:純度99.97%
FD-MS:calcd for C84H52N6=1144
found m/z=1144(M+,100)
ビカルバゾリル中間体A1(1.29g、3.15mmol)、ベンゾキナゾリン中間体B7(1.23g、3.00mmol)を用いて実施例1と同様の操作を行い、化合物8(1.68g、収率76%)を得た。
HPLC:純度99.52%
FD-MS:calcd for C54H34N4=738
found m/z=738(M+,100)
HPLC:純度99.71%
FD-MS:calcd for C54H34N4=738
found m/z=738(M+,100)
ビカルバゾリル中間体A2(1.29g、3.15mmol)、ベンゾキナゾリン中間体B8(11.23g、3.00mmol)を用いて実施例1と同様の操作を行い、化合物10(1.78g、収率80%)を得た。
HPLC:純度99.76%
FD-MS:calcd for C54H34N4=738
found m/z=738(M+,100)
ビカルバゾリル中間体A2(1.29g、3.15mmol)、ベンゾキナゾリン中間体B9(1.23g、3.00mmol)を用いて実施例1と同様の操作を行い、化合物11(1.82g、収率82%)を得た。
HPLC:純度99.65%
FD-MS:calcd for C54H34N4=738
found m/z=738(M+,100)
ビカルバゾリル中間体A2(1.80g、4.40mmol)、ベンゾキナゾリン中間体B10(0.84g、2.10mmol)用いて実施例3と同様の操作を行い、化合物12(2.00g、収率83%)を得た。
HPLC:純度99.23%
FD-MS:calcd for C84H52N6=1144、
found m/z=1144(M+,100)
ビカルバゾリル中間体A2(1.80g、4.40mmol)、ベンゾキナゾリン中間体B11(1.03g、2.10mmol)用いて実施例3と同様の操作を行い、化合物13(2.05g、収率85%)を得た。
HPLC:純度99.68%
FD-MS:calcd for C84H52N6=1144、
found m/z=1144(M+,100)
ビカルバゾリル中間体A1(1.29g、3.15mmol)、ベンゾキナゾリン中間体B12(0.87g、3.00mmol)を用いて実施例1と同様の操作を行い、化合物14(1.78g、収率90%)を得た。
HPLC:純度99.58%
FD-MS:calcd for C48H30N4=662
found m/z=662(M+,100)
ビカルバゾリル中間体A2(1.29g、3.15mmol)、ベンゾキナゾリン中間体B13(0.87g、3.00mmol)を用いて実施例1と同様の操作を行い、化合物15(1.82g、収率92%)を得た。
HPLC:純度99.49%
FD-MS:calcd for C48H30N4=662
found m/z=662(M+,100)
ビカルバゾリル中間体A2(1.80g、4.40mmol)、ベンゾキナゾリン中間体B14(0.78g、2.10mmol)を用いて実施例3と同様の操作を行い、化合物16(1.91g、収率85%)を得た。
HPLC:純度99.78%
FD-MS:calcd for C78H48N6=1069、
found m/z=1069(M+,100)
実施例17
25mm×75mm×厚さ1.1mmのITO透明電極付きガラス基板(ジオマティック株式会社製)をイソプロピルアルコール中で超音波洗浄を5分間行なった後、UVオゾン洗浄を30分間行った。
洗浄後の130nmの透明電極ライン付きガラス基板を真空蒸着装置の基板ホルダーに装着し、まず透明電極ラインが形成されている側の面上に前記透明電極を覆うようにして第1正孔輸送材料として下記化合物HT-1を蒸着し、膜厚45nmの第1正孔輸送層を成膜した。第1正孔輸送層の成膜に続けて、第2正孔輸送材料として下記化合物HT-2を蒸着し、膜厚10nmの第2正孔輸送層を成膜した。
さらに、この第2正孔輸送層上に、ホスト材料として実施例4で得た化合物4と、燐光発光材料として下記化合物RD-1とを共蒸着し、膜厚40nmの燐光発光層を成膜した。発光層内における化合物RD-1の濃度は5.0質量%であった。この共蒸着膜は発光層として機能する。尚、発光層の成膜にかかる全ての操作は窒素雰囲気のグローブボックス中で実施した。
そして、この発光層成膜に続けて下記化合物ET-1を膜厚40nmで成膜した。この化合物ET-1膜は第1電子輸送層として機能する。
次に、LiFを電子注入性電極(陰極)として成膜速度0.1オングストローム/minで成膜し、膜厚を1nmとした。このLiF膜上に金属Alを蒸着させ、金属陰極を膜厚80nmで形成した。全ての蒸着工程を完了させた後、窒素雰囲気のグローブボックス中でザグリガラスによる封止を行い、有機EL素子を作製した。
実施例17において、発光層のホスト材料として化合物4を用いる代わりに、実施例5で得た化合物を用いて発光層を形成した以外は実施例17と同様にして有機EL素子を作製した。
実施例17において、発光層のホスト材料として化合物4を用いる代わりに、表1の化合物を用いて発光層を形成した以外は実施例17と同様にして有機EL素子を作製した。
実施例17において、発光層のホスト材料として化合物4を用いる代わりに、下記比較化合物1を用いて発光層を形成した以外は実施例17と同様にして有機EL素子を作製した。
上記各例で作製した有機EL素子の外部量子効率の測定結果を表1に示す。
25mm×25mm×厚さ1.1mmのITO透明電極付きガラス基板(ジオマテック株式会社製)をイソプロピルアルコール中で超音波洗浄を5分間行った後、UVオゾン洗浄を5分間行った。
正孔輸送材料としてCLEVIOUS AI4083(HERAEUS社製)を用い、30nmの厚さで前記のITO基板上にスピンコート法により正孔輸送層を成膜した。成膜後、アセトンにより不要部分を除去し、次いで大気中200℃のホットプレートで10分間焼成し、下地基板を作製した。
ホスト材料として実施例3で得た化合物3を、ドーパント材料として上記化合物RD-1を用い、化合物3:化合物RD-1が重量比で95:5となるような混合比で、1.6質量%のトルエン溶液を作製した。このトルエン溶液を用い、前記下地基板上にスピンコート法により、50nmの膜厚になるように塗布積層した。塗布成膜後、不要部分をトルエンにて除去し、150℃のホットプレート上で加熱乾燥し、発光層を成膜した塗布積層基板を作製した。尚、発光層の成膜にかかる全ての操作は窒素雰囲気のグローブボックス中で実施した。
塗布積層基板を蒸着チャンバー中に搬送し、電子輸送材料として上記化合物ET-1を50nm蒸着し電子輸送層を成膜した。
さらに、フッ化リチウムを1nm、アルミニウムを80nm蒸着積層した。全ての蒸着工程を完了させた後、窒素雰囲気のグローブボックス中でザグリガラスによる封止を行い、有機EL素子を製造した。
実施例28において、ホスト材料として化合物3を用いる代わりに、表2の化合物を用いて発光層を形成した以外は実施例28と同様にして有機EL素子を作製した。
本願のパリ優先の基礎となる日本出願明細書の内容を全てここに援用する。
Claims (29)
- 下記式(1)で表される化合物。
[式中、L1は単結合又は連結基であり、Aは下記式(A)で表される基であり、Bは下記式(B)で表される基であり、mは1~3の整数であり、nは1~4の整数である。
mが2以上の場合、複数のBはそれぞれ同一でも異なっていてもよい。
nが2以上の場合、複数のL1はそれぞれ同一でも異なっていてもよく、複数のBはそれぞれ同一でも異なっていてもよい。
L1が単結合の場合、AとBとが直接結合されることを示し、かつ、mは1である。
(式(A)中、X1~X4はそれぞれ独立に、窒素原子(N)又はCRaであり、X1~X4のうち2つは窒素原子である。
Ra及びR1~R6のn個は、それが置換する式(A)中の炭素原子とL1(又はL1が単結合の場合のB)とを直接結合させる単結合を表す。
Ra及びR1~R6のうち前記単結合ではないRa及びR1~R6はそれぞれ独立に、水素原子又は置換基である。)
(式(B)中、L11は単結合又は連結基である。
R11~R19の1つは、それが置換する式(B)中の炭素原子とL1(又はL1が単結合の場合のA)とを直接結合させる単結合を表し、他の1つは、それが置換する式(B)中の炭素原子とL11とを直接結合させる単結合を表す。
R11~R19のうち前記単結合以外のR11~R19はそれぞれ独立に、水素原子又は置換基である。
R21~R29の1つは、それが置換する式(B)中の炭素原子とL11とを直接結合させる単結合を表す。
R21~R29のうち前記単結合以外のR21~R29はそれぞれ独立に、水素原子又は置換基である。
L11が単結合の場合、R11~R19の1つ、及び、R21~R29の1つは、それぞれが置換する式(B)中の炭素原子どうしを直接結合させる単結合を表す。) - 前記L1が、置換もしくは無置換の環形成炭素数6~30のアリーレン基である、請求項1~17のいずれかに記載の化合物。
- 前記L1が、フェニレン基、ビフェニレン基、又は、ナフチレン基である、請求項1~18のいずれかに記載の化合物。
- 前記L1が、m-フェニレンである、請求項1~19のいずれかに記載の化合物。
- 前記Ra、R1~R6、R11~R19、及びR21~R29の示す置換基が、それぞれ独立に、置換もしくは無置換の炭素数1~50のアルキル基、置換もしくは無置換の環形成炭素数3~50のシクロアルキル基、置換もしくは無置換の環形成炭素数6~60のアリール基、置換もしくは無置換の炭素数7~51のアラルキル基、アミノ基、置換もしくは無置換の炭素数1~50のアルキル基及び置換もしくは無置換の環形成炭素数6~60のアリール基から選ばれる置換基を有するモノ置換又はジ置換アミノ基、置換もしくは無置換の炭素数1~50のアルコキシ基、置換もしくは無置換の環形成炭素数6~50のアリールオキシ基、置換もしくは無置換の炭素数1~50のアルキル基及び置換もしくは無置換の環形成炭素数6~60のアリール基から選ばれる置換基を有するモノ置換、ジ置換又はトリ置換シリル基、置換もしくは無置換の環形成原子数5~60のヘテロアリール基、置換もしくは無置換の炭素数1~50のハロアルキル基、ハロゲン原子、シアノ基、ニトロ基、置換もしくは無置換の炭素数1~50のアルキル基及び置換もしくは無置換の環形成炭素数6~60のアリール基から選ばれる置換基を有するスルフォニル基、置換もしくは無置換の炭素数1~50のアルキル基及び置換もしくは無置換の環形成炭素数6~60のアリール基から選ばれる置換基を有するジ置換ホスフォリル基、アルキルスルホニルオキシ基、アリールスルホニルオキシ基、アルキルカルボニルオキシ基、アリールカルボニルオキシ基、ホウ素含有基、亜鉛含有基、スズ含有基、ケイ素含有基、マグネシウム含有基、リチウム含有基、ヒドロキシ基、アルキル置換カルボニル基、アリール置換カルボニル基、カルボキシル基、ビニル基、(メタ)アクリロイル基、エポキシ基、並びにオキセタニル基からなる群から選択される基である、請求項1~20のいずれかに記載の化合物。
- 前記置換基が、置換もしくは無置換のアリール基又は置換もしくは無置換のヘテロアリールであって、
前記アリール基はフェニル基、ナフチル基、ナフチルフェニル基、ビフェニリル基、ターフェニリル基、アセナフチレニル基、アントリル基、ベンゾアントリル基、アセアントリル基、フェナントリル基、ベンゾフェナントリル基、フェナレニル基、フルオレニル基、9,9’-スピロビフルオレニル基、ベンゾフルオレニル基、ジベンゾフルオレニル基、ピセニル基、ペンタフェニル基、ペンタセニル基、ピレニル基、クリセニル基、ベンゾクリセニル基、s-インダセニル基、as-インダセニル基、フルオランテニル基、ベンゾフルオランテニル基、テトラセニル基、トリフェニレニル基、ベンゾトリフェニレニル基、ペリレニル基、コロニル基、及びジベンゾアントリル基からなる群より選ばれるアリール基であり、
前記ヘテロアリール基はピロリル基、フリル基、チエニル基、ピリジル基、ピリダジニル基、ピリミジニル基、ピラジニル基、トリアジニル基、イミダゾリル基、オキサゾリル基、チアゾリル基、ピラゾリル基、イソオキサゾリル基、イソチアゾリル基、オキサジアゾリル基、チアジアゾリル基、トリアゾリル基、テトラゾリル基、インドリル基、イソインドリル基、ベンゾフラニル基、イソベンゾフラニル基、ベンゾチオフェニル基、イソベンゾチオフェニル基、インドリジニル基、キノリジニル基、キノリル基、イソキノリル基、シンノリル基、フタラジニル基、キナゾリニル基、キノキサリニル基、ベンズイミダゾリル基、ベンズオキサゾリル基、ベンズチアゾリル基、インダゾリル基、ベンズイソキサゾリル基、ベンズイソチアゾリル基、ジベンゾフラニル基、ジベンゾチオフェニル基、カルバゾリル基、フェナントリジニル基、アクリジニル基、フェナントロリニル基、フェナジニル基、フェノチアジニル基、フェノキサジニル基、アザトリフェニレニル基、ジアザトリフェニレニル基、キサンテニル基、アザカルバゾリル基、アザジベンゾフラニル基、アザジベンゾチオフェニル基、ベンゾフラノベンゾチオフェニル基、ベンゾチエノベンゾチオフェニル基、ジベンゾフラノナフチル基、ジベンゾチエノナフチル基、及びジナフトチエノチオフェニル基からなる群より選ばれるヘテロアリール基である、請求項21に記載の化合物。 - 前記Raの示す置換基が、置換もしくは無置換のアリール基であって、
前記アリール基はフェニル基、ナフチル基、ナフチルフェニル基、ビフェニリル基、ターフェニリル基、アセナフチレニル基、アントリル基、ベンゾアントリル基、アセアントリル基、フェナントリル基、ベンゾフェナントリル基、フェナレニル基、フルオレニル基、9,9’-スピロビフルオレニル基、ベンゾフルオレニル基、ジベンゾフルオレニル基、ピセニル基、ペンタフェニル基、ペンタセニル基、ピレニル基、クリセニル基、ベンゾクリセニル基、s-インダセニル基、as-インダセニル基、フルオランテニル基、ベンゾフルオランテニル基、テトラセニル基、トリフェニレニル基、ベンゾトリフェニレニル基、ペリレニル基、コロニル基、及びジベンゾアントリル基からなる群より選ばれるアリール基である、請求項1~4,9~22のいずれかに記載の化合物。 - 陰極と陽極との間に発光層を含む1以上の有機薄膜層を有し、前記有機薄膜層の少なくとも1層が、請求項1~23のいずれかに記載の化合物を含有する有機エレクトロルミネッセンス素子。
- 前記発光層が前記化合物を含有する請求項24に記載の有機エレクトロルミネッセンス素子。
- 前記発光層が燐光発光材料を含有する請求項24又は25に記載の有機エレクトロルミネッセンス素子。
- 前記燐光発光材料が、イリジウム(Ir)、オスミウム(Os)及び白金(Pt)から選択される金属原子のオルトメタル化錯体である請求項26に記載の有機エレクトロルミネッセンス素子。
- 請求項24~28のいずれかに記載の有機エレクトロルミネッセンス素子を備える電子機器。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015528151A JP6263183B2 (ja) | 2013-07-23 | 2014-07-23 | 新規化合物及びそれを用いた有機エレクトロルミネッセンス素子 |
| CN201480037395.0A CN105339365B (zh) | 2013-07-23 | 2014-07-23 | 新型化合物和使用其的有机电致发光元件 |
| US14/906,824 US9508939B2 (en) | 2013-07-23 | 2014-07-23 | Compound and organic electroluminescent element produced using same |
| KR1020167001649A KR20160033116A (ko) | 2013-07-23 | 2014-07-23 | 신규 화합물 및 그것을 사용한 유기 전계 발광 소자 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013152753 | 2013-07-23 | ||
| JP2013-152753 | 2013-07-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2015011924A1 true WO2015011924A1 (ja) | 2015-01-29 |
Family
ID=52392988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2014/003885 Ceased WO2015011924A1 (ja) | 2013-07-23 | 2014-07-23 | 新規化合物及びそれを用いた有機エレクトロルミネッセンス素子 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US9508939B2 (ja) |
| JP (1) | JP6263183B2 (ja) |
| KR (1) | KR20160033116A (ja) |
| CN (1) | CN105339365B (ja) |
| WO (1) | WO2015011924A1 (ja) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015182769A1 (ja) * | 2014-05-29 | 2015-12-03 | 東ソー株式会社 | キナゾリン及びベンゾキナゾリン化合物、その製法及び用途 |
| JP2016020332A (ja) * | 2014-06-18 | 2016-02-04 | 東ソー株式会社 | キナゾリン化合物、その製造方法、およびその用途 |
| JP2016020333A (ja) * | 2014-05-29 | 2016-02-04 | 東ソー株式会社 | ベンゾキナゾリン化合物、その製造方法、およびその用途 |
| WO2016129691A1 (ja) * | 2015-02-13 | 2016-08-18 | 出光興産株式会社 | 化合物、組成物、有機エレクトロルミネッセンス素子、および電子機器 |
| JP2016169210A (ja) * | 2015-03-09 | 2016-09-23 | 東ソー株式会社 | 縮環芳香族化合物の製造方法 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102140006B1 (ko) * | 2013-10-11 | 2020-07-31 | 에스에프씨 주식회사 | 유기발광 화합물 및 이를 포함하는 유기전계발광소자 |
| KR20150042387A (ko) * | 2013-10-11 | 2015-04-21 | 에스에프씨 주식회사 | 유기발광 화합물 및 이를 포함하는 유기전계발광소자 |
| CN108033918B (zh) * | 2017-12-28 | 2020-12-25 | 西安欧得光电材料有限公司 | 一种光电材料中间体2-氯-4-苯基苯并[h]喹唑啉的合成方法 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120211736A1 (en) * | 2009-11-03 | 2012-08-23 | Cheil Industries, Inc. | Compound for organic photoelectric device and organic photoelectric device including the same |
| WO2012121561A1 (en) * | 2011-03-08 | 2012-09-13 | Rohm And Haas Electronic Materials Korea Ltd. | Novel organic electroluminescent compounds and organic electroluminescent device using the same |
| KR20120117693A (ko) * | 2011-04-15 | 2012-10-24 | 에스에프씨 주식회사 | 신규한 화합물 및 이를 포함하는 유기전계발광소자 |
| WO2013062075A1 (ja) * | 2011-10-26 | 2013-05-02 | 出光興産株式会社 | 有機エレクトロルミネッセンス素子および有機エレクトロルミネッセンス素子用材料 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI314947B (en) | 2002-04-24 | 2009-09-21 | Eastman Kodak Compan | Organic light emitting diode devices with improved operational stability |
| JP4963357B2 (ja) | 2002-10-30 | 2012-06-27 | チバ ホールディング インコーポレーテッド | エレクトロルミネセントデバイス |
| JP5266514B2 (ja) | 2005-03-29 | 2013-08-21 | コニカミノルタ株式会社 | 有機エレクトロルミネッセンス素子 |
| US7723722B2 (en) | 2007-03-23 | 2010-05-25 | Semiconductor Energy Laboratory Co., Ltd. | Organic compound, anthracene derivative, and light-emitting element, light-emitting device, and electronic device using anthracene derivative |
| JP2009246097A (ja) | 2008-03-31 | 2009-10-22 | Konica Minolta Holdings Inc | 有機エレクトロルミネッセンス素子、表示装置、及び照明装置 |
| EP2674429B1 (en) | 2011-02-07 | 2020-12-23 | Idemitsu Kosan Co., Ltd. | Biscarbazole derivative and organic electroluminescent element using same |
| JP5745549B2 (ja) | 2011-02-07 | 2015-07-08 | 出光興産株式会社 | ビスカルバゾール誘導体及びそれを用いた有機エレクトロルミネッセンス素子 |
| JP6129075B2 (ja) | 2011-08-18 | 2017-05-17 | 出光興産株式会社 | ビスカルバゾール誘導体およびこれを用いた有機エレクトロルミネッセンス素子 |
-
2014
- 2014-07-23 CN CN201480037395.0A patent/CN105339365B/zh not_active Expired - Fee Related
- 2014-07-23 US US14/906,824 patent/US9508939B2/en active Active
- 2014-07-23 JP JP2015528151A patent/JP6263183B2/ja not_active Expired - Fee Related
- 2014-07-23 WO PCT/JP2014/003885 patent/WO2015011924A1/ja not_active Ceased
- 2014-07-23 KR KR1020167001649A patent/KR20160033116A/ko not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120211736A1 (en) * | 2009-11-03 | 2012-08-23 | Cheil Industries, Inc. | Compound for organic photoelectric device and organic photoelectric device including the same |
| WO2012121561A1 (en) * | 2011-03-08 | 2012-09-13 | Rohm And Haas Electronic Materials Korea Ltd. | Novel organic electroluminescent compounds and organic electroluminescent device using the same |
| KR20120117693A (ko) * | 2011-04-15 | 2012-10-24 | 에스에프씨 주식회사 | 신규한 화합물 및 이를 포함하는 유기전계발광소자 |
| WO2013062075A1 (ja) * | 2011-10-26 | 2013-05-02 | 出光興産株式会社 | 有機エレクトロルミネッセンス素子および有機エレクトロルミネッセンス素子用材料 |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015182769A1 (ja) * | 2014-05-29 | 2015-12-03 | 東ソー株式会社 | キナゾリン及びベンゾキナゾリン化合物、その製法及び用途 |
| JP2016020333A (ja) * | 2014-05-29 | 2016-02-04 | 東ソー株式会社 | ベンゾキナゾリン化合物、その製造方法、およびその用途 |
| JP2016020332A (ja) * | 2014-06-18 | 2016-02-04 | 東ソー株式会社 | キナゾリン化合物、その製造方法、およびその用途 |
| WO2016129691A1 (ja) * | 2015-02-13 | 2016-08-18 | 出光興産株式会社 | 化合物、組成物、有機エレクトロルミネッセンス素子、および電子機器 |
| JPWO2016129691A1 (ja) * | 2015-02-13 | 2017-11-24 | 出光興産株式会社 | 化合物、組成物、有機エレクトロルミネッセンス素子、および電子機器 |
| CN107428738A (zh) * | 2015-02-13 | 2017-12-01 | 出光兴产株式会社 | 化合物、组合物、有机电致发光元件和电子设备 |
| US20180037574A1 (en) * | 2015-02-13 | 2018-02-08 | Idemitsu Kosan Co., Ltd. | Compound, composition, organic electroluminescence element, and electronic device |
| US10538514B2 (en) | 2015-02-13 | 2020-01-21 | Idemitsu Kosan Co., Ltd. | Compound, composition, organic electroluminescence element, and electronic device |
| JP2016169210A (ja) * | 2015-03-09 | 2016-09-23 | 東ソー株式会社 | 縮環芳香族化合物の製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20160172604A1 (en) | 2016-06-16 |
| CN105339365B (zh) | 2018-01-26 |
| CN105339365A (zh) | 2016-02-17 |
| JP6263183B2 (ja) | 2018-01-17 |
| JPWO2015011924A1 (ja) | 2017-03-02 |
| US9508939B2 (en) | 2016-11-29 |
| KR20160033116A (ko) | 2016-03-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6263183B2 (ja) | 新規化合物及びそれを用いた有機エレクトロルミネッセンス素子 | |
| TWI762451B (zh) | 用於電子裝置之化合物 | |
| WO2020071478A1 (ja) | 新規化合物、及びそれを含む有機エレクトロルミネッセンス素子用材料 | |
| KR102282551B1 (ko) | 카바졸 유도체, 이것을 이용한 유기 전기발광 소자용 재료, 및 이것을 이용한 유기 전기발광 소자 및 전자 기기 | |
| EP3597689B1 (en) | High-molecular-weight compound having substituted triarylamine skeleton | |
| KR102840359B1 (ko) | 유기 일렉트로루미네센스 소자 및 전자 기기 | |
| WO2019163825A1 (ja) | 有機エレクトロルミネッセンス素子及び電子機器 | |
| WO2020036197A1 (ja) | 有機エレクトロルミネッセンス素子及びそれを用いた電子機器 | |
| JP2015207758A (ja) | 有機エレクトロルミネッセンス素子及びインク組成物 | |
| WO2020116561A1 (ja) | 有機エレクトロルミネッセンス素子及び電子機器 | |
| EP4043512A1 (en) | Organic electroluminescence element having organic layer comprising high molecular weight compound | |
| WO2024248101A1 (ja) | 化合物、有機エレクトロルミネッセンス素子、及び電子機器 | |
| WO2025018248A1 (ja) | 化合物、有機エレクトロルミネッセンス素子、及び電子機器 | |
| JP2022162897A (ja) | 組成物、粉体、有機エレクトロルミネッセンス素子、有機エレクトロルミネッセンス素子の製造方法及び電子機器 | |
| KR102897065B1 (ko) | 화합물, 유기 일렉트로루미네센스 소자용 재료, 유기 일렉트로루미네센스 소자, 및 전자 기기 | |
| JP7562914B2 (ja) | 化合物、有機エレクトロルミネッセンス素子用材料、有機エレクトロルミネッセンス素子、及び電子機器 | |
| WO2024166616A1 (ja) | 有機エレクトロルミネッセンス素子及び電子機器 | |
| JP2023155624A (ja) | 化合物、有機エレクトロルミネッセンス素子用材料、有機エレクトロルミネッセンス素子、及び電子機器 | |
| JP2024111412A (ja) | 化合物及びそれを用いた有機エレクトロルミネッセンス素子 | |
| KR20250040895A (ko) | 화합물, 유기 일렉트로루미네센스 소자용 재료, 유기 일렉트로루미네센스 소자, 및 전자 기기 | |
| KR20250163315A (ko) | 유기 일렉트로루미네센스 소자 및 전자 기기 | |
| KR20220151624A (ko) | 화합물 및 유기 일렉트로루미네센스 소자 | |
| KR20220144806A (ko) | 화합물 및 유기 일렉트로루미네센스 소자 | |
| CN121001984A (zh) | 化合物、有机电致发光元件和电子设备 | |
| CN119630657A (zh) | 化合物、有机电致发光元件用材料、有机电致发光元件和电子设备 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WWE | Wipo information: entry into national phase |
Ref document number: 201480037395.0 Country of ref document: CN |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14830032 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 2015528151 Country of ref document: JP Kind code of ref document: A |
|
| ENP | Entry into the national phase |
Ref document number: 20167001649 Country of ref document: KR Kind code of ref document: A |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 14906824 Country of ref document: US |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 14830032 Country of ref document: EP Kind code of ref document: A1 |