JP2007514650A - 有機発光素子の有機物層に使用可能な新規化合物 - Google Patents
有機発光素子の有機物層に使用可能な新規化合物 Download PDFInfo
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- JP2007514650A JP2007514650A JP2006537893A JP2006537893A JP2007514650A JP 2007514650 A JP2007514650 A JP 2007514650A JP 2006537893 A JP2006537893 A JP 2006537893A JP 2006537893 A JP2006537893 A JP 2006537893A JP 2007514650 A JP2007514650 A JP 2007514650A
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 161
- 239000012044 organic layer Substances 0.000 title claims abstract description 16
- 239000010410 layer Substances 0.000 claims abstract description 78
- 239000000463 material Substances 0.000 claims abstract description 31
- 150000001491 aromatic compounds Chemical class 0.000 claims description 23
- 125000004432 carbon atom Chemical group C* 0.000 claims description 23
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 claims description 20
- 125000000217 alkyl group Chemical group 0.000 claims description 19
- 125000001424 substituent group Chemical group 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 16
- 229930006711 bornane-2,3-dione Natural products 0.000 claims description 15
- 150000002390 heteroarenes Chemical class 0.000 claims description 13
- VNQXSTWCDUXYEZ-UHFFFAOYSA-N 1,7,7-trimethylbicyclo[2.2.1]heptane-2,3-dione Chemical compound C1CC2(C)C(=O)C(=O)C1C2(C)C VNQXSTWCDUXYEZ-UHFFFAOYSA-N 0.000 claims description 12
- 238000002360 preparation method Methods 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 10
- -1 3,4-diamino-thiophene compound Chemical group 0.000 claims description 9
- ZADPBFCGQRWHPN-UHFFFAOYSA-N boronic acid Chemical compound OBO ZADPBFCGQRWHPN-UHFFFAOYSA-N 0.000 claims description 9
- 239000011368 organic material Substances 0.000 claims description 9
- 229910052739 hydrogen Inorganic materials 0.000 claims description 7
- 239000001257 hydrogen Substances 0.000 claims description 7
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 7
- 229920000642 polymer Polymers 0.000 claims description 7
- 125000003545 alkoxy group Chemical group 0.000 claims description 6
- 150000003974 aralkylamines Chemical class 0.000 claims description 6
- 229910052736 halogen Inorganic materials 0.000 claims description 6
- 150000002367 halogens Chemical class 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- SKFFLLWXTPKBGO-UHFFFAOYSA-N 3,4-dinitrothiophene Chemical compound [O-][N+](=O)C1=CSC=C1[N+]([O-])=O SKFFLLWXTPKBGO-UHFFFAOYSA-N 0.000 claims description 4
- 239000003054 catalyst Substances 0.000 claims description 4
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 4
- 125000003277 amino group Chemical group 0.000 claims description 3
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims description 3
- 150000001639 boron compounds Chemical group 0.000 claims description 3
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- 150000004665 fatty acids Chemical class 0.000 claims 1
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- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 54
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- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical group C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 28
- 239000007787 solid Substances 0.000 description 28
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- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 21
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- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 10
- 238000001228 spectrum Methods 0.000 description 10
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 9
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- 230000005284 excitation Effects 0.000 description 8
- 238000001914 filtration Methods 0.000 description 8
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 8
- 0 CC1(*)C=NC(C)=CN=C1 Chemical compound CC1(*)C=NC(C)=CN=C1 0.000 description 7
- 238000000862 absorption spectrum Methods 0.000 description 7
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- AHGHPBPARMANQD-UHFFFAOYSA-N 2,5-dibromo-3,4-dinitrothiophene Chemical compound [O-][N+](=O)C1=C(Br)SC(Br)=C1[N+]([O-])=O AHGHPBPARMANQD-UHFFFAOYSA-N 0.000 description 6
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 6
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 6
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- 230000000052 comparative effect Effects 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 125000005264 aryl amine group Chemical group 0.000 description 5
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- 238000004770 highest occupied molecular orbital Methods 0.000 description 5
- UBJFKNSINUCEAL-UHFFFAOYSA-N lithium;2-methylpropane Chemical compound [Li+].C[C-](C)C UBJFKNSINUCEAL-UHFFFAOYSA-N 0.000 description 5
- 239000003960 organic solvent Substances 0.000 description 5
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 5
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- 238000012546 transfer Methods 0.000 description 5
- KYQCOXFCLRTKLS-UHFFFAOYSA-N Pyrazine Chemical compound C1=CN=CC=N1 KYQCOXFCLRTKLS-UHFFFAOYSA-N 0.000 description 4
- 125000003282 alkyl amino group Chemical group 0.000 description 4
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000706 filtrate Substances 0.000 description 4
- 230000008014 freezing Effects 0.000 description 4
- 238000007710 freezing Methods 0.000 description 4
- 230000003993 interaction Effects 0.000 description 4
- 239000012299 nitrogen atmosphere Substances 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 239000011541 reaction mixture Substances 0.000 description 4
- WRECIMRULFAWHA-UHFFFAOYSA-N trimethyl borate Chemical compound COB(OC)OC WRECIMRULFAWHA-UHFFFAOYSA-N 0.000 description 4
- VNQXSTWCDUXYEZ-TYICEKJOSA-N (4r)-4,7,7-trimethylbicyclo[2.2.1]heptane-2,3-dione Chemical compound C1C[C@@]2(C)C(=O)C(=O)C1C2(C)C VNQXSTWCDUXYEZ-TYICEKJOSA-N 0.000 description 3
- HXWWMGJBPGRWRS-CMDGGOBGSA-N 4- -2-tert-butyl-6- -4h-pyran Chemical compound O1C(C(C)(C)C)=CC(=C(C#N)C#N)C=C1\C=C\C1=CC(C(CCN2CCC3(C)C)(C)C)=C2C3=C1 HXWWMGJBPGRWRS-CMDGGOBGSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- USDIRSJFHPHMAS-UHFFFAOYSA-N ClC1=NC=C(C=2C1=NC=CN=2)F Chemical group ClC1=NC=C(C=2C1=NC=CN=2)F USDIRSJFHPHMAS-UHFFFAOYSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
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- 238000001035 drying Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 230000009878 intermolecular interaction Effects 0.000 description 3
- PQXKHYXIUOZZFA-UHFFFAOYSA-M lithium fluoride Chemical compound [Li+].[F-] PQXKHYXIUOZZFA-UHFFFAOYSA-M 0.000 description 3
- 238000004020 luminiscence type Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000002861 polymer material Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 125000003373 pyrazinyl group Chemical group 0.000 description 3
- TVIVIEFSHFOWTE-UHFFFAOYSA-K tri(quinolin-8-yloxy)alumane Chemical compound [Al+3].C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1 TVIVIEFSHFOWTE-UHFFFAOYSA-K 0.000 description 3
- WNFHAXMZIWWJMP-UHFFFAOYSA-N (4-amino-2,3-diphenylphenyl)boronic acid Chemical compound C=1C=CC=CC=1C=1C(N)=CC=C(B(O)O)C=1C1=CC=CC=C1 WNFHAXMZIWWJMP-UHFFFAOYSA-N 0.000 description 2
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 2
- SQTLUXJWUCHKMT-UHFFFAOYSA-N 4-bromo-n,n-diphenylaniline Chemical compound C1=CC(Br)=CC=C1N(C=1C=CC=CC=1)C1=CC=CC=C1 SQTLUXJWUCHKMT-UHFFFAOYSA-N 0.000 description 2
- WDFQBORIUYODSI-UHFFFAOYSA-N 4-bromoaniline Chemical compound NC1=CC=C(Br)C=C1 WDFQBORIUYODSI-UHFFFAOYSA-N 0.000 description 2
- UJOBWOGCFQCDNV-UHFFFAOYSA-N 9H-carbazole Chemical compound C1=CC=C2C3=CC=CC=C3NC2=C1 UJOBWOGCFQCDNV-UHFFFAOYSA-N 0.000 description 2
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 2
- PCNDJXKNXGMECE-UHFFFAOYSA-N Phenazine Natural products C1=CC=CC2=NC3=CC=CC=C3N=C21 PCNDJXKNXGMECE-UHFFFAOYSA-N 0.000 description 2
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical group C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 description 2
- DGEZNRSVGBDHLK-UHFFFAOYSA-N [1,10]phenanthroline Chemical compound C1=CN=C2C3=NC=CC=C3C=CC2=C1 DGEZNRSVGBDHLK-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
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- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
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- 239000003599 detergent Substances 0.000 description 2
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical group C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 2
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- UKJFVOWPUXSBOM-UHFFFAOYSA-N hexane;oxolane Chemical compound C1CCOC1.CCCCCC UKJFVOWPUXSBOM-UHFFFAOYSA-N 0.000 description 2
- 125000002883 imidazolyl group Chemical group 0.000 description 2
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 2
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- 239000011259 mixed solution Substances 0.000 description 2
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- OCJBOOLMMGQPQU-UHFFFAOYSA-N 1,4-dichlorobenzene Chemical compound ClC1=CC=C(Cl)C=C1 OCJBOOLMMGQPQU-UHFFFAOYSA-N 0.000 description 1
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- XHCAGOVGSDHHNP-UHFFFAOYSA-N 1-bromo-4-tert-butylbenzene Chemical compound CC(C)(C)C1=CC=C(Br)C=C1 XHCAGOVGSDHHNP-UHFFFAOYSA-N 0.000 description 1
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- DMEVMYSQZPJFOK-UHFFFAOYSA-N 3,4,5,6,9,10-hexazatetracyclo[12.4.0.02,7.08,13]octadeca-1(18),2(7),3,5,8(13),9,11,14,16-nonaene Chemical group N1=NN=C2C3=CC=CC=C3C3=CC=NN=C3C2=N1 DMEVMYSQZPJFOK-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- XNPPNCFPAABVJS-UHFFFAOYSA-N CC(C)(C)c(cc1)ccc1N(c1ccc(C(C)(C)C)cc1)c(cc1)ccc1-c([s]c(-c(cc1)ccc1N(c1ccc(C(C)(C)C)cc1)c1ccc(C(C)(C)C)cc1)c1[N+]([O-])=O)c1[N+]([O-])=O Chemical compound CC(C)(C)c(cc1)ccc1N(c1ccc(C(C)(C)C)cc1)c(cc1)ccc1-c([s]c(-c(cc1)ccc1N(c1ccc(C(C)(C)C)cc1)c1ccc(C(C)(C)C)cc1)c1[N+]([O-])=O)c1[N+]([O-])=O XNPPNCFPAABVJS-UHFFFAOYSA-N 0.000 description 1
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- ABRVLXLNVJHDRQ-UHFFFAOYSA-N [2-pyridin-3-yl-6-(trifluoromethyl)pyridin-4-yl]methanamine Chemical compound FC(C1=CC(=CC(=N1)C=1C=NC=CC=1)CN)(F)F ABRVLXLNVJHDRQ-UHFFFAOYSA-N 0.000 description 1
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 1
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- YCOXTKKNXUZSKD-UHFFFAOYSA-N as-o-xylenol Natural products CC1=CC=C(O)C=C1C YCOXTKKNXUZSKD-UHFFFAOYSA-N 0.000 description 1
- 125000003236 benzoyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C(*)=O 0.000 description 1
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- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
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- 230000006378 damage Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229940117389 dichlorobenzene Drugs 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- GVEPBJHOBDJJJI-UHFFFAOYSA-N fluoranthrene Natural products C1=CC(C2=CC=CC=C22)=C3C2=CC=CC3=C1 GVEPBJHOBDJJJI-UHFFFAOYSA-N 0.000 description 1
- 125000002485 formyl group Chemical group [H]C(*)=O 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 230000002140 halogenating effect Effects 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- SNHMUERNLJLMHN-UHFFFAOYSA-N iodobenzene Chemical compound IC1=CC=CC=C1 SNHMUERNLJLMHN-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 125000002183 isoquinolinyl group Chemical group C1(=NC=CC2=CC=CC=C12)* 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 125000002950 monocyclic group Chemical group 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- KPTRDYONBVUWPD-UHFFFAOYSA-N naphthalen-2-ylboronic acid Chemical compound C1=CC=CC2=CC(B(O)O)=CC=C21 KPTRDYONBVUWPD-UHFFFAOYSA-N 0.000 description 1
- UFWIBTONFRDIAS-UHFFFAOYSA-N naphthalene-acid Natural products C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 1
- 150000002790 naphthalenes Chemical class 0.000 description 1
- 125000002560 nitrile group Chemical group 0.000 description 1
- 125000005245 nitryl group Chemical group [N+](=O)([O-])* 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- WCPAKWJPBJAGKN-UHFFFAOYSA-N oxadiazole Chemical group C1=CON=N1 WCPAKWJPBJAGKN-UHFFFAOYSA-N 0.000 description 1
- 125000001820 oxy group Chemical group [*:1]O[*:2] 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- CSHWQDPOILHKBI-UHFFFAOYSA-N peryrene Natural products C1=CC(C2=CC=CC=3C2=C2C=CC=3)=C3C2=CC=CC3=C1 CSHWQDPOILHKBI-UHFFFAOYSA-N 0.000 description 1
- 125000003367 polycyclic group Chemical group 0.000 description 1
- 125000001725 pyrenyl group Chemical group 0.000 description 1
- 125000005495 pyridazyl group Chemical group 0.000 description 1
- 125000004076 pyridyl group Chemical group 0.000 description 1
- 125000000168 pyrrolyl group Chemical group 0.000 description 1
- 238000006862 quantum yield reaction Methods 0.000 description 1
- 125000002943 quinolinyl group Chemical group N1=C(C=CC2=CC=CC=C12)* 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- 238000002207 thermal evaporation Methods 0.000 description 1
- ARYHTUPFQTUBBG-UHFFFAOYSA-N thiophen-2-ylboronic acid Chemical compound OB(O)C1=CC=CS1 ARYHTUPFQTUBBG-UHFFFAOYSA-N 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 125000001425 triazolyl group Chemical group 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
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Abstract
Description
本発明者らは分子間相互作用によって発生する問題点を解決することができる発光材料を分子設計しようとした。このためにカンホルキノン(camphorquinone)から由来された、立体的に大きいシクロアルキル基を主要発光部分であるチオフェンピラジン分子骨格に導入して、また、前記カンホルキノン(camphorquinone)由来のシクロアルキル基に置換基(R0)を導入してキラル性(chirality)炭素を有するシクロアルキル基を形成させることで、前記発光材料を非対称化合物、例えば、光学ミラー異性質体で製造した。前記発光材料を有機物層に光学ミラー異性質体またはラセミ体で導入させることで化合物らの間の相互作用を最大限減少させることができた。結局、化合物らの間の相互作用の減少で発光減衰效果が小さくて、色純度が高い発光色を效率的に出すことができるだけでなく、有機発光素子に使用される場合に素子の寿命、效率、熱的安全性を向上して低電圧駆動ができるようにする化合物を提供することができた。
R0は炭素数1ないし6個の低級アルキル基であって、
R1及びR2は同一であるか、または相異であって、水素と、芳香族化合物及びこれの誘導体と、5角形または6角形のヘテロ芳香族化合物及びこれの誘導体と、炭素数1ないし20の脂肪族炭化水素及びこれの誘導体と、炭素数1ないし20の脂肪族炭化水素及びこれの誘導体に置換されるか、または非置換された、炭素数1ないし20のアルキル基を含むアルキルアミンと、炭素数1ないし20の脂肪族炭化水素、芳香族化合物、ヘテロ芳香族化合物、及びこれらの誘導体でなされた群から選択される1種以上の基で置換されるか、または非置換された、炭素数1ないし20のアルキル基を含むアラルキルアミンと、芳香族化合物、ヘテロ芳香族化合物及びこれの誘導体に置換されるか、または置換されないアリールアミンと、芳香族化合物、ヘテロ芳香族化合物及びこれの誘導体に置換されるか、または置換されないシリコンまたはホウ素化合物でなされた群から選択されて、またはR1及びR2は縮合環(fused ring)を形成することができるか、またはR1及びR2は線形で連結されて式1の化合物を重合体で形成することができるようにする。
また、本発明は前記式1の化合物を有機物層に使った有機発光素子を提供する。
本発明は、前記式1の化合物を提供する。
前記式1の化合物は発光物質、特に緑色、黄色い、橙(だいだい)色または赤色発光物質で使用されることができるし、有機発光素子で発光ホストまたはドーパントで使用されることができる。
前記式1のうちR1及びR2において、前記芳香族化合物の例ではフェニル、ビフェニル、ターフェニル(terphenyl)などの単環式芳香族環及びナフチル、アントラセニル(anthracenyl)、ピレニル(pyrenyl)、ペリレニル(perylenyl)などの多環式芳香族環などを挙げることができる。
R3は芳香族炭化水素及びそれらの誘導体と、5角形または6角形でなされたヘテロ芳香族化合物及びそれらの誘導体と、炭素数1ないし20の脂肪族炭化水素及びそれらの誘導体と、または炭素数5ないし20個のシクロアルキル基であって、
Xは芳香族炭化水素及びそれらの誘導体と、5角形または6角形でなされたヘテロ芳香族化合物及びそれらの誘導体と、炭素数1ないし20の脂肪族炭化水素と、炭素数5ないし20個のシクロアルキル基または水素、アリールアミン基、アラルキルアミン基、アルキルアミン基、アリールオキシ基、二トリル基、ホルミル基、アセチル基、ベンゾイル基、アミド基、エステル基、スチリル基、アセチレン基、アルコキシ基、アリールオキシ基、アルキルチオキシ(alkylthioxy)基、アリールチオキシ(arylthioxy)基であり、縮合環(fused ring)を形 成することができる。
3、4-ジアミノチオフェンの2、5-位置にBr2またはNBS、Cl2またはNCSのようなハロゲン化剤によってハロゲン(X)を導入させる。得られた2、5-ジハロゲン-3、4-ジアミノ−チオフェン化合物と前記式3-1、3-2または3で示すカンホルキノン(camphorquinone)をエタノール、酢酸またはこれらの混合溶液下で反応させてチアノピラジン(thianopyrazine)化合物を製造する。続いて、得られたチアノピラジン化合物、R1置換体を有するボロン酸及びR2置換体を有するボロン酸をジオキサン、テトラヒドロフランまたはトルエンなどの有機溶媒及びK2CO3またはNa2CO3のような塩基下でPd触媒を加えて結合させて前記式1の化合物を製造することができる。このような製造方法は下記のような反応式2で示すことができる。
前記製造方法でハロゲンは臭素(bromine)であることが望ましい。
前述した前記式1の化合物の製造方法は、後述する製造例でさらに詳しく説明する。
式1-1の化合物の合成
1-1.中間体である下記式の化合物の合成
m/z 324(M+)
[M+H]+325
[M+H]+660
融点:239.9℃
1H NMR in CDCl3 δ:8.15(d、2H)、8.02(d、2H)、7.29(m、10H)、7.19(m、12H)、7.04(t、4H)、2.94(d、1H)、2.25(m、1H)、2.00(t、1H)、1.52(d、2H)、1.36(s、3H)、1.11(s、3H)、0.74(s、3H)
吸収スペクトル:λmax490nm(溶媒:2x10-5Mトルエン)
蛍光スペクトル:λmax641nm(励起波長492nm溶媒:2x10-5Mトルエン)
[M+H]+853
式1-2の化合物の合成
融点:255.3℃
1H NMR in CDCl3 δ:8.15(d、2H)、8.02(d、2H)、7.29(m、10H)、7.19(m、12H)、7.04(t、4H)、2.94(d、1H)、2.25(m、1H)、2.00(t、1H)、1.52(d、2H)、1.36(s、3H)、1.11(s、3H)、0.74(s、3H)
吸収スペクトル:λmax490nm(溶媒:2x10-5Mトルエン)
蛍光スペクトル:λmax643nm(励起波長492nm溶媒:2x10-5Mトルエン)
[M+H]+853
式1-5の化合物の合成
3-1.中間体である下記式の化合物の合成
[M+H]+358
m/z 436
[M+H]+437
[M+H]+885
融点:298℃
1H NMR in CDCl3 δ:8.11(d、2H)、7.98(d、2H)、7.28(m、10H)、7.10(m、12H)、2.91(m、1H)、2.25(m、1H)、2.00(t、1H)、1.52(d、2H)、1.36(s、36H)、1.09(s、3H)、0.72(s、3H)
吸収スペクトル:λmax500nm(溶媒:2x10-5Mトルエン)
蛍光スペクトル:λmax652nm(励起波長500nm溶媒:2x10-5Mトルエン)
[M+H]+955
式1-6の化合物の合成
4-1.中間体である下記式の化合物の合成
[M+H]+427
融点:194.4℃
1H NMR in CDCl3 δ:8.8(s、2H)、8.64(s、2H)、8.43(d、2H)、8.33(d、2H)、7.97(m、8H)、7.87(d、4H)、7.53(m、8H)、3.05(d、1H)、2.25(m、1H)、2.11(t、1H)、1.58(d、2H)、
1.46(s、3H)、1.16(s、3H)、0.80(s、3H)
吸収スペクトル:λmax450nm(溶媒:2x10-5Mトルエン)
蛍光スペクトル:λmax584nm(励起波長nm溶媒:2x10-5Mトルエン)
[M+H]+497
式1-13の化合物の合成
5-1.中間体である下記式の化合物の合成
m/z352(M+)
[M+H]+353
[M+H]+717
融点207.9℃。
1H NMR in CDCl3 δ:8.13(d、2H)、8.01(d、2H)、7.17(m、8H)、6.98(m、8H)、6.87(m、4H)、2.93(d、1H)、2.28(m、13H)、2.03(q、1H)、1.52(t、2H)、1.35(s、3H)、1.10(s、3H)、0.73(s、3H)
吸収スペクトル:λmax499nm(溶媒:2x10-5Mトルエン)
蛍光スペクトル:λmaxnm(励起波長nm溶媒:2x10-5Mトルエン)
[M+H]+787
式1-14の化合物の合成
6-1.中間体である下記式の化合物の合成
融点:Oil
1H NMR in CDCl3 δ:7.63(d、2H)、7.35(d、2H)、7.12(t、2H)、3.00(d、1H)、2.47(m、1H)、2.06(m、1H)、1.53(d、2H)、1.42(s、3H)、1.13(s、3H)、0.75(s、3H)
吸収スペクトル:λmax485nm(溶媒:2x10-5Mトルエン)
蛍光スペクトル:λmax630nm(励起波長481nm溶媒:2x10-5Mトルエン)
[M+H]+409
式1-15の化合物の合成
7-1.中間体である下記式の化合物の合成
m/z 322(M+)
[M+H]+323
[M+H]+657
融点:336℃
1H NMR in CDCl3 δ:8.57(d、2H)、8.47(d、2H)、8.20(d、4H)、7.50(m、16H)、3.08(d、1H)、2.32(m、1H)、2.14(t、1H)、1.60(d、5H)、1.18(s、3H)、0.83(s、3H)
吸収スペクトル:λmax450nm(溶媒:2x10-5Mトルエン)
蛍光スペクトル:λmax582nm(励起波長446nm溶媒:2x10-5Mトルエン)
[M+H]+727
以下では前記製造例で製造した化合物を有機発光素子に応用した実施例を提示する。
ITO(Indium Tin Oxide:酸化インジウムスズ)が1000Åの厚さで薄膜コーティングされたガラス基板を洗剤をとかした蒸溜水に入れて超音波で洗滌した。洗剤はフィッシャー社(Fischer Co.)の製品を使ったし、蒸溜水はミリフォア社(Millipore Co.)製品のフィルター(Filter)で2次で濾過された蒸溜水を使った。ITOでコーティングされた基板を30分間蒸溜水で1次洗滌して10分ずつ超音波洗滌を2回繰り返した。蒸溜水洗滌が終わればイソプロフィルアルコール、アセトン、メタノールなどの溶剤を順次的に利用して超音波洗滌をして乾燥させた後プラズマ洗浄機で輸送させた。
ITO透明電極上に下記式4のヘキサニトリルヘキサアザトリフェニレンを500Åの厚さで熱真空蒸着して正孔注入層を形成した。
発光層の形成時に発光ホストとして下記式6の化合物を使ったことを除いては実施例1と同一な方法で有機発光素子を製作した。
発光層の形成時にドーパントとして前記製造例2で製造した式1-2の化合物を使ったことを除いては実施例1と同一な方法で有機発光素子を製作した。
発光層の形成時に発光ホストとして前記式6の化合物を使用して、ドーパントとして前記製造例2で製造した式1-2の化合物を使ったことを除いては実施例1と同一な方法で有機発光素子を製作した。
発光層の形成時に発光ホストとして前記式6の化合物を利用して、ドーパントとして前記製造例3で製造した式1-5の化合物を利用したことを除いては実施例1と同一な方法で有機発光素子を製作した。
発光層の形成時に発光ホストとして前記式6の化合物を利用して、ドーパントとして前記製造例4で製造した式1-6の化合物を利用したことを除いては実施例1と同一な方法で有機発光素子を製作した。
発光層の形成時に発光ホストとして前記式6の化合物を使用して、ドーパントとしてDCJTBを使ったことを除いては実施例1と同一な方法で有機発光素子を製作した。
発光層の形成時にドーパントを使わないことを除いては実施例1と同一な方法で有機発光素子を製作した。
発光層の形成時に発光ホストとして前記式6の化合物を使用して、ドーパントを使わないことを除いては実施例2と同一な方法で有機発光素子を製作した。
発光層の形成時にドーパントとして式1-1の化合物でシクロアルキル基の代わりにジメチル基に置換された化合物を利用したことを除いては実施例1と同一な方法で有機発光素子を製作した。
2 正極
3 正孔注入層
4 正孔輸送層
5 有機発光層
6 電子輸送層
7 負極
Claims (7)
- 下記式1の化合物:
R0は炭素数1ないし6個の低級アルキル基であって、
R1及びR2は同一であるかまたは相異であって、水素と、芳香族化合物及びこれの誘導体と、5角形または6角形のヘテロ芳香族化合物及びこれの誘導体と、炭素数1ないし20の脂肪族炭化水素及びこれの誘導体と、炭素数1ないし20の脂肪族炭化水素及びこれの誘導体に置換されるか、または非置換された、炭素数1ないし20のアルキル基を含むアルキルアミンと、炭素数1ないし20の脂肪族炭化水素、芳香族化合物、ヘテロ芳香族化合物、及びこれらの誘導体でなされた群から選択される1種以上の基で置換されるか、または非置換された、炭素数1ないし20のアルキル基を含むアラルキルアミンと、芳香族化合物、ヘテロ芳香族化合物及びこれの誘導体に置換されるか、または置換されないアリールアミンと、芳香族化合物、ヘテロ芳香族化合物及びこれの誘導体に置換されるか、または置換されないシリコンまたはホウ素化合物でなされた群から選択されて、またはR1及びR2は縮合環(fused ring)を形成することができるか、またはR1及びR2は線形で連結されて式1の化合物を重合体で形成することができるようにする。 - 前記式1の化合物は下記式1-1ないし1-41の化合物でなされた群から選択されるものであることを特徴とする請求項1に記載の化合物:
- 前記式1の化合物は有機発光素子で発光材料として使用されるためのものであることを特徴とする請求項1に記載の化合物。
- a)R1置換体を有するボロン酸、R2置換体を有するボロン酸及び2、5-ジハロゲン3、4-ジニトロチオフェンを塩基下でPd触媒を加えて結合させる段階であり、ここでR1及びR2の定義は請求項1の式1のうちR1及びR2の定義と同じものである段階と、
b)前記a)段階で得た化合物のうちのニトロ基(NO2)をアミノ基(NH2)に還元させる段階と、及び
c)前記b)段階で得た化合物をカンホルキノン(camphorquinone)と反応させる段階と、
を含む請求項1に記載した式1の化合物の製造方法。 - a)3、4-ジアミノ−チオフェン化合物の2、5位置にハロゲンを導入させる段階と、
b)前記a)段階で得た化合物とカンホルキノン(camphorquinone)を反応させてチアノピラジン化合物を製造する段階と、及び
c)R1置換体を有するボロン酸、R2置換体を有するボロン酸及び前記b)段階で得た2、5-ジハロゲンチアノピラジン化合物を塩基下でPd触媒を加えて結合させる段階として、ここでR1及びR2の定義は請求項1の式1のうちでR1及びR2の定義と同じものである段階と、
を含む請求項1に記載された式1の化合物の製造方法。 - 第1電極、1層以上でなされた有機物層及び第2電極を順次的に積層された形態で含む有機発光素子として、前記有機物層のうちで少なくとも1層は請求項1あるいは請求項3のうちでどの一つの項に記載された前記式1の化合物の1種以上を含むことを特徴とする有機発光素子。
- 前記式1の化合物は(R)-異性質体、(S)-異性質体及びこれらの混合物でなされた群から選択された1種類の状態であることを特徴とする請求項6に記載の有機発光素子。
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