JP5363710B2 - 有機発光性化合物およびこれを備えた有機電界発光素子 - Google Patents
有機発光性化合物およびこれを備えた有機電界発光素子 Download PDFInfo
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- JP5363710B2 JP5363710B2 JP2007133416A JP2007133416A JP5363710B2 JP 5363710 B2 JP5363710 B2 JP 5363710B2 JP 2007133416 A JP2007133416 A JP 2007133416A JP 2007133416 A JP2007133416 A JP 2007133416A JP 5363710 B2 JP5363710 B2 JP 5363710B2
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 94
- -1 4- [N, N -Di (p-tolyl) amino] phenyl group Chemical group 0.000 claims description 314
- 239000000126 substance Substances 0.000 claims description 115
- 238000002347 injection Methods 0.000 claims description 64
- 239000007924 injection Substances 0.000 claims description 64
- 125000000217 alkyl group Chemical group 0.000 claims description 30
- 125000003118 aryl group Chemical group 0.000 claims description 24
- 230000005525 hole transport Effects 0.000 claims description 24
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 22
- 125000003545 alkoxy group Chemical group 0.000 claims description 18
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 18
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 18
- 230000000903 blocking effect Effects 0.000 claims description 17
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical group [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 14
- 229910052801 chlorine Inorganic materials 0.000 claims description 14
- 125000001309 chloro group Chemical group Cl* 0.000 claims description 14
- 229910052731 fluorine Inorganic materials 0.000 claims description 14
- 125000001072 heteroaryl group Chemical group 0.000 claims description 14
- 125000002560 nitrile group Chemical group 0.000 claims description 14
- 125000001153 fluoro group Chemical group F* 0.000 claims description 13
- 125000000592 heterocycloalkyl group Chemical group 0.000 claims description 12
- 238000005401 electroluminescence Methods 0.000 claims description 8
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 7
- 229910052717 sulfur Inorganic materials 0.000 claims description 7
- 125000004434 sulfur atom Chemical group 0.000 claims description 7
- 125000002178 anthracenyl group Chemical group C1(=CC=CC2=CC3=CC=CC=C3C=C12)* 0.000 claims description 5
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 5
- 125000003983 fluorenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3CC12)* 0.000 claims description 4
- 125000001041 indolyl group Chemical group 0.000 claims description 4
- 125000001624 naphthyl group Chemical group 0.000 claims description 4
- 125000001725 pyrenyl group Chemical group 0.000 claims description 4
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 claims description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 3
- 125000001037 p-tolyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1*)C([H])([H])[H] 0.000 claims description 3
- 125000001792 phenanthrenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3C=CC12)* 0.000 claims description 3
- YJTKZCDBKVTVBY-UHFFFAOYSA-N 1,3-Diphenylbenzene Chemical group C1=CC=CC=C1C1=CC=CC(C=2C=CC=CC=2)=C1 YJTKZCDBKVTVBY-UHFFFAOYSA-N 0.000 claims description 2
- 125000002636 imidazolinyl group Chemical group 0.000 claims description 2
- 125000003107 substituted aryl group Chemical group 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 137
- 238000000034 method Methods 0.000 description 37
- 230000015572 biosynthetic process Effects 0.000 description 28
- 239000000463 material Substances 0.000 description 26
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 24
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 24
- 238000003786 synthesis reaction Methods 0.000 description 19
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 18
- 238000006243 chemical reaction Methods 0.000 description 16
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 15
- 239000012044 organic layer Substances 0.000 description 15
- 239000002019 doping agent Substances 0.000 description 14
- 238000001771 vacuum deposition Methods 0.000 description 14
- 238000004528 spin coating Methods 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 125000000753 cycloalkyl group Chemical group 0.000 description 12
- 239000007787 solid Substances 0.000 description 12
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 12
- 239000002904 solvent Substances 0.000 description 11
- 239000000243 solution Substances 0.000 description 10
- 125000005577 anthracene group Chemical group 0.000 description 9
- 239000000047 product Substances 0.000 description 9
- 238000010898 silica gel chromatography Methods 0.000 description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 239000012043 crude product Substances 0.000 description 8
- 238000000151 deposition Methods 0.000 description 8
- 230000008021 deposition Effects 0.000 description 8
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 7
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- 238000000425 proton nuclear magnetic resonance spectrum Methods 0.000 description 7
- 239000000758 substrate Substances 0.000 description 7
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 6
- 239000003480 eluent Substances 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 6
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 5
- PCLIMKBDDGJMGD-UHFFFAOYSA-N N-bromosuccinimide Chemical compound BrN1C(=O)CCC1=O PCLIMKBDDGJMGD-UHFFFAOYSA-N 0.000 description 5
- 238000000862 absorption spectrum Methods 0.000 description 5
- 239000012298 atmosphere Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- NAWXUBYGYWOOIX-SFHVURJKSA-N (2s)-2-[[4-[2-(2,4-diaminoquinazolin-6-yl)ethyl]benzoyl]amino]-4-methylidenepentanedioic acid Chemical compound C1=CC2=NC(N)=NC(N)=C2C=C1CCC1=CC=C(C(=O)N[C@@H](CC(=C)C(O)=O)C(O)=O)C=C1 NAWXUBYGYWOOIX-SFHVURJKSA-N 0.000 description 4
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 4
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical group [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 4
- 229910052786 argon Inorganic materials 0.000 description 4
- 125000004196 benzothienyl group Chemical group S1C(=CC2=C1C=CC=C2)* 0.000 description 4
- 239000012267 brine Substances 0.000 description 4
- 125000004093 cyano group Chemical group *C#N 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 125000005843 halogen group Chemical group 0.000 description 4
- 125000002632 imidazolidinyl group Chemical group 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229920000767 polyaniline Polymers 0.000 description 4
- 229910052711 selenium Inorganic materials 0.000 description 4
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 4
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 description 4
- 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 4
- VQGHOUODWALEFC-UHFFFAOYSA-N 2-phenylpyridine Chemical compound C1=CC=CC=C1C1=CC=CC=N1 VQGHOUODWALEFC-UHFFFAOYSA-N 0.000 description 3
- OBAJPWYDYFEBTF-UHFFFAOYSA-N 2-tert-butyl-9,10-dinaphthalen-2-ylanthracene Chemical compound C1=CC=CC2=CC(C3=C4C=CC=CC4=C(C=4C=C5C=CC=CC5=CC=4)C4=CC=C(C=C43)C(C)(C)C)=CC=C21 OBAJPWYDYFEBTF-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 125000002676 chrysenyl group Chemical group C1(=CC=CC=2C3=CC=C4C=CC=CC4=C3C=CC12)* 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 3
- 150000002894 organic compounds Chemical class 0.000 description 3
- 238000000103 photoluminescence spectrum Methods 0.000 description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 3
- 229920003227 poly(N-vinyl carbazole) Polymers 0.000 description 3
- 125000000719 pyrrolidinyl group Chemical group 0.000 description 3
- 125000002943 quinolinyl group Chemical group N1=C(C=CC2=CC=CC=C12)* 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 125000001424 substituent group Chemical group 0.000 description 3
- OGNSDRMLWYNUED-UHFFFAOYSA-N 1-cyclohexyl-4-[4-[4-(4-cyclohexylcyclohexyl)cyclohexyl]cyclohexyl]cyclohexane Chemical group C1CCCCC1C1CCC(C2CCC(CC2)C2CCC(CC2)C2CCC(CC2)C2CCCCC2)CC1 OGNSDRMLWYNUED-UHFFFAOYSA-N 0.000 description 2
- TWZSIAFEFBKCNN-UHFFFAOYSA-N 2,3-dibromo-1-benzothiophene Chemical compound C1=CC=C2C(Br)=C(Br)SC2=C1 TWZSIAFEFBKCNN-UHFFFAOYSA-N 0.000 description 2
- ZVFQEOPUXVPSLB-UHFFFAOYSA-N 3-(4-tert-butylphenyl)-4-phenyl-5-(4-phenylphenyl)-1,2,4-triazole Chemical compound C1=CC(C(C)(C)C)=CC=C1C(N1C=2C=CC=CC=2)=NN=C1C1=CC=C(C=2C=CC=CC=2)C=C1 ZVFQEOPUXVPSLB-UHFFFAOYSA-N 0.000 description 2
- FJXNABNMUQXOHX-UHFFFAOYSA-N 4-(9h-carbazol-1-yl)-n,n-bis[4-(9h-carbazol-1-yl)phenyl]aniline Chemical compound C12=CC=CC=C2NC2=C1C=CC=C2C(C=C1)=CC=C1N(C=1C=CC(=CC=1)C=1C=2NC3=CC=CC=C3C=2C=CC=1)C(C=C1)=CC=C1C1=C2NC3=CC=CC=C3C2=CC=C1 FJXNABNMUQXOHX-UHFFFAOYSA-N 0.000 description 2
- MAGFQRLKWCCTQJ-UHFFFAOYSA-N 4-ethenylbenzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=C(C=C)C=C1 MAGFQRLKWCCTQJ-UHFFFAOYSA-N 0.000 description 2
- FCNCGHJSNVOIKE-UHFFFAOYSA-N 9,10-diphenylanthracene Chemical compound C1=CC=CC=C1C(C1=CC=CC=C11)=C(C=CC=C2)C2=C1C1=CC=CC=C1 FCNCGHJSNVOIKE-UHFFFAOYSA-N 0.000 description 2
- VFUDMQLBKNMONU-UHFFFAOYSA-N 9-[4-(4-carbazol-9-ylphenyl)phenyl]carbazole Chemical compound C12=CC=CC=C2C2=CC=CC=C2N1C1=CC=C(C=2C=CC(=CC=2)N2C3=CC=CC=C3C3=CC=CC=C32)C=C1 VFUDMQLBKNMONU-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 description 2
- 125000004054 acenaphthylenyl group Chemical group C1(=CC2=CC=CC3=CC=CC1=C23)* 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 125000003828 azulenyl group Chemical group 0.000 description 2
- HFACYLZERDEVSX-UHFFFAOYSA-N benzidine Chemical compound C1=CC(N)=CC=C1C1=CC=C(N)C=C1 HFACYLZERDEVSX-UHFFFAOYSA-N 0.000 description 2
- 125000002529 biphenylenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3C12)* 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 125000000609 carbazolyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3NC12)* 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 125000003336 coronenyl group Chemical group C1(=CC2=CC=C3C=CC4=CC=C5C=CC6=CC=C1C1=C6C5=C4C3=C21)* 0.000 description 2
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 2
- 239000007772 electrode material Substances 0.000 description 2
- ZKQFHRVKCYFVCN-UHFFFAOYSA-N ethoxyethane;hexane Chemical compound CCOCC.CCCCCC ZKQFHRVKCYFVCN-UHFFFAOYSA-N 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 230000001747 exhibiting effect Effects 0.000 description 2
- 125000003838 furazanyl group Chemical group 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 125000003824 heptacenyl group Chemical group C1(=CC=CC2=CC3=CC4=CC5=CC6=CC7=CC=CC=C7C=C6C=C5C=C4C=C3C=C12)* 0.000 description 2
- 125000005842 heteroatom Chemical group 0.000 description 2
- 125000001633 hexacenyl group Chemical group C1(=CC=CC2=CC3=CC4=CC5=CC6=CC=CC=C6C=C5C=C4C=C3C=C12)* 0.000 description 2
- 125000002883 imidazolyl group Chemical group 0.000 description 2
- 125000003454 indenyl group Chemical group C1(C=CC2=CC=CC=C12)* 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 125000002757 morpholinyl group Chemical group 0.000 description 2
- IBHBKWKFFTZAHE-UHFFFAOYSA-N n-[4-[4-(n-naphthalen-1-ylanilino)phenyl]phenyl]-n-phenylnaphthalen-1-amine Chemical compound C1=CC=CC=C1N(C=1C2=CC=CC=C2C=CC=1)C1=CC=C(C=2C=CC(=CC=2)N(C=2C=CC=CC=2)C=2C3=CC=CC=C3C=CC=2)C=C1 IBHBKWKFFTZAHE-UHFFFAOYSA-N 0.000 description 2
- 125000004433 nitrogen atom Chemical group N* 0.000 description 2
- 125000002971 oxazolyl group Chemical group 0.000 description 2
- 125000000466 oxiranyl group Chemical group 0.000 description 2
- 125000001820 oxy group Chemical group [*:1]O[*:2] 0.000 description 2
- 125000003933 pentacenyl group Chemical group C1(=CC=CC2=CC3=CC4=CC5=CC=CC=C5C=C4C=C3C=C12)* 0.000 description 2
- JQQSUOJIMKJQHS-UHFFFAOYSA-N pentaphenyl group Chemical group C1=CC=CC2=CC3=CC=C4C=C5C=CC=CC5=CC4=C3C=C12 JQQSUOJIMKJQHS-UHFFFAOYSA-N 0.000 description 2
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 description 2
- 125000001828 phenalenyl group Chemical group C1(C=CC2=CC=CC3=CC=CC1=C23)* 0.000 description 2
- 125000004437 phosphorous atom Chemical group 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 125000001388 picenyl group Chemical group C1(=CC=CC2=CC=C3C4=CC=C5C=CC=CC5=C4C=CC3=C21)* 0.000 description 2
- 125000004193 piperazinyl group Chemical group 0.000 description 2
- 125000003386 piperidinyl group Chemical group 0.000 description 2
- 125000000561 purinyl group Chemical group N1=C(N=C2N=CNC2=C1)* 0.000 description 2
- 125000003373 pyrazinyl group Chemical group 0.000 description 2
- 125000003072 pyrazolidinyl group Chemical group 0.000 description 2
- 125000003226 pyrazolyl group Chemical group 0.000 description 2
- 125000002098 pyridazinyl group Chemical group 0.000 description 2
- 125000004076 pyridyl group Chemical group 0.000 description 2
- 125000000714 pyrimidinyl group Chemical group 0.000 description 2
- 125000000168 pyrrolyl group Chemical group 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 125000003831 tetrazolyl group Chemical group 0.000 description 2
- 125000000335 thiazolyl group Chemical group 0.000 description 2
- 125000001544 thienyl group Chemical group 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 125000001425 triazolyl group Chemical group 0.000 description 2
- 125000003960 triphenylenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3C3=CC=CC=C3C12)* 0.000 description 2
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 description 2
- BIWQNIMLAISTBV-UHFFFAOYSA-N (4-methylphenyl)boronic acid Chemical compound CC1=CC=C(B(O)O)C=C1 BIWQNIMLAISTBV-UHFFFAOYSA-N 0.000 description 1
- MIOPJNTWMNEORI-GMSGAONNSA-N (S)-camphorsulfonic acid Chemical compound C1C[C@@]2(CS(O)(=O)=O)C(=O)C[C@@H]1C2(C)C MIOPJNTWMNEORI-GMSGAONNSA-N 0.000 description 1
- 125000005923 1,2-dimethylpropyloxy group Chemical group 0.000 description 1
- NCWDBNBNYVVARF-UHFFFAOYSA-N 1,3,2-dioxaborolane Chemical compound B1OCCO1 NCWDBNBNYVVARF-UHFFFAOYSA-N 0.000 description 1
- 125000006219 1-ethylpentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000001637 1-naphthyl group Chemical group [H]C1=C([H])C([H])=C2C(*)=C([H])C([H])=C([H])C2=C1[H] 0.000 description 1
- ZQEHKNSNBIKPBT-UHFFFAOYSA-N 2,3-bis(2-methylphenyl)-1-benzothiophene Chemical compound CC1=CC=CC=C1C1=C(C=2C(=CC=CC=2)C)C2=CC=CC=C2S1 ZQEHKNSNBIKPBT-UHFFFAOYSA-N 0.000 description 1
- DQSMASIUOCXHAM-UHFFFAOYSA-N 2,3-bis(4-methylphenyl)-1-benzothiophene Chemical compound C1=CC(C)=CC=C1C1=C(C=2C=CC(C)=CC=2)C2=CC=CC=C2S1 DQSMASIUOCXHAM-UHFFFAOYSA-N 0.000 description 1
- JPYBOGFQEPDJRZ-UHFFFAOYSA-N 2,3-dibromo-1-benzofuran Chemical compound C1=CC=C2C(Br)=C(Br)OC2=C1 JPYBOGFQEPDJRZ-UHFFFAOYSA-N 0.000 description 1
- MWRDZPAXOBHQJE-UHFFFAOYSA-N 2,3-dibromo-1-methylindole Chemical compound C1=CC=C2N(C)C(Br)=C(Br)C2=C1 MWRDZPAXOBHQJE-UHFFFAOYSA-N 0.000 description 1
- VPRYGSKSLDELAY-UHFFFAOYSA-N 2,6-dibromo-9,10-diphenylanthracene Chemical compound C=12C=C(Br)C=CC2=C(C=2C=CC=CC=2)C2=CC(Br)=CC=C2C=1C1=CC=CC=C1 VPRYGSKSLDELAY-UHFFFAOYSA-N 0.000 description 1
- XSONHSNGZRLVML-UHFFFAOYSA-N 2-bromo-6-(4-methylphenyl)-9,10-diphenylanthracene Chemical compound C1=CC(C)=CC=C1C1=CC=C(C(C=2C=CC=CC=2)=C2C(C=CC(Br)=C2)=C2C=3C=CC=CC=3)C2=C1 XSONHSNGZRLVML-UHFFFAOYSA-N 0.000 description 1
- OZNXPZBQVNNJCS-UHFFFAOYSA-N 2-bromo-9,10-diphenylanthracene Chemical compound C=12C=CC=CC2=C(C=2C=CC=CC=2)C2=CC(Br)=CC=C2C=1C1=CC=CC=C1 OZNXPZBQVNNJCS-UHFFFAOYSA-N 0.000 description 1
- WBIQQQGBSDOWNP-UHFFFAOYSA-N 2-dodecylbenzenesulfonic acid Chemical compound CCCCCCCCCCCCC1=CC=CC=C1S(O)(=O)=O WBIQQQGBSDOWNP-UHFFFAOYSA-N 0.000 description 1
- NSMJMUQZRGZMQC-UHFFFAOYSA-N 2-naphthalen-1-yl-1H-imidazo[4,5-f][1,10]phenanthroline Chemical compound C12=CC=CN=C2C2=NC=CC=C2C2=C1NC(C=1C3=CC=CC=C3C=CC=1)=N2 NSMJMUQZRGZMQC-UHFFFAOYSA-N 0.000 description 1
- 125000001622 2-naphthyl group Chemical group [H]C1=C([H])C([H])=C2C([H])=C(*)C([H])=C([H])C2=C1[H] 0.000 description 1
- 125000006607 3,3-dimethylbutyloxy group Chemical group 0.000 description 1
- 125000003469 3-methylhexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 1
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- 238000005424 photoluminescence Methods 0.000 description 1
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- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium atom Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 description 1
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- FRNOGLGSGLTDKL-UHFFFAOYSA-N thulium atom Chemical compound [Tm] FRNOGLGSGLTDKL-UHFFFAOYSA-N 0.000 description 1
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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
- H10K85/615—Polycyclic condensed aromatic hydrocarbons, e.g. anthracene
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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Description
アルゴンガス雰囲気下、500mLの丸底フラスコに、2,3−ジブロモ−ベンゾ[b]チオフェン3.0g(10.27mmol)、p−トリルボロン酸4.89g(35.95mmol)、Na2CO3 2.39g(22.59mmol)、およびテトラキス(トリフェニルホスフィン)パラジウム(Pd(PPh3)4)0.36g(0.31mmol)を入れ、テトラヒドロフラン(THF)5mlと水2.2mLとを加えて、85℃で2時間還流させた。溶液の色が濃褐色に変わることを確認した後、水を添加した。有機層を酢酸エチルで抽出した。その後、抽出した有機層を無水硫酸マグネシウムで乾燥させ、濾過し溶媒を除去した。有機層を少量のトルエンに溶かし、シリカゲルカラムクロマトグラフィ(溶離液:ヘキサン)で分離して、固体の粗生成物を得た。この粗生成物をトルエンおよびメタノールを用いて再結晶させて、白色の固体2.8g(収率87%)を得た。得られた生成物の1H−NMRスペクトルは、下記表1の通りであった。
500mLの丸底フラスコ中で、上記で得られた2,3−ジ−トリル−ベンゾ[b]チオフェン2.5g(7.9mmol)、およびN−ブロモスクシンイミド(NBS) 14g(79mmol)をTHF200mLに溶かして1時間撹拌した。水100mLを添加して反応を終了させた。抽出を行い、白色の固体を3g(収率85%)得た。得られた生成物の1H−NMRスペクトルは、下記表2の通りであった。
アルゴンガス雰囲気下、500mLの丸底フラスコ中で、上記で得られた6−ブロモ−2,3−ジ−p−トリル−ベンゾ[b]チオフェン5g(12.75mmol)をTHF150mLに溶かした後、−78℃でn−BuLi 2.5M(ヘキサン溶液)6.12mL(15.31mmol)を添加した。−78℃で2時間撹拌した。その後、2−イソプロポキシ−4,4,5,5−テトラメチル−1,3,2−ジオキサボロラン3.4mL(16.58mmol)を添加して、室温で1時間撹拌した。水50mLを添加して反応を終了させた。有機層を、ブラインおよび塩化メチレンを用いて抽出した。抽出した有機層を無水硫酸マグネシウムで乾燥させ、濾過し溶媒を除去した。シリカゲルクロマトグラフィ(溶離液:ヘキサン)で精製した後、さらに溶離液の極性を高めてシリカゲルクロマトグラフィで精製し、白色の固体4.8g(収率79%)を得た。
500mLの丸底フラスコ中で、9,10−ジフェニル−アントラセン3.0g(9.2mmol)、およびNBS 8.2g(46mmol)をN,N−ジメチルホルムアミド(DMF)60mLに溶かし、80℃で4時間攪拌した。水30mLを添加して反応を終了させた。有機層をブラインおよび塩化メチレンを用いて抽出した。抽出した有機層を無水硫酸マグネシウムで乾燥させ、濾過し溶媒を除去した。得られた粗生成物の固体を、ヘキサンを用いて再結晶させた。再結晶で得られた結晶をTHFに溶かして、シリカゲルカラムクロマトグラフィ(溶離液:ヘキサン−塩化メチレン)で精製し、黄色の固体1.4g(収率32%)を得た。得られた生成物の1H−NMRスペクトルは、下記表3の通りであった。
アルゴンガス雰囲気下、500mLの丸底フラスコに上記で得られた中間体B 1.8g(3.7mmol)、上記で得られた中間体A 4.0g(9.25mmol)、K2CO3 0.86g(8.14mmol)、およびPd(PPh3)4 0.21g(0.185mmol)を入れ、さらにTHFおよび水を加えて、110℃で12時間還流させた。有機層をブラインおよび塩化メチレンで抽出した。抽出した有機層を無水硫酸マグネシウムで乾燥させ、濾過し溶媒を除去した。得られた粗生成物の固体を、シリカゲルカラムクロマトグラフィ(溶離液:ヘキサン−ジエチルエーテル)で精製して、黄色の固体である化合物(前記化学式(8)で表される化合物)3.0g(収率、86%)を得た。得られた生成物の1H−NMRスペクトルは、下記表4の通りであった。
500mLの丸底フラスコ中で、9,10−ジフェニル−アントラセン3g(9.5mmol)、NBS 4.1g(23mmol)をDMF70mlに溶かして、80℃で4時間攪拌した。水30mlを添加して反応を終了させた。有機層を、ブラインおよび塩化メチレンを用いて抽出した。抽出した有機層を無水硫酸マグネシウムで乾燥させ、濾過し溶媒を除去した。得られた粗生成物の固体をヘキサンで再結晶した。再結晶で得られた結晶をTHFに溶かして、シリカゲルカラムクロマトグラフィ(溶離液:ヘキサン)で精製して、黄色の固体1.4g(収率32%)を得た。得られた生成物の1H−NMRスペクトルは、下記表5の通りであった。
上記で得られた中間体C 1.8g(3.8mmol)を、THF100mLに溶解させた。前記中間体A 2.0g(4.6mmol)、Pd(PPh3)4 0.1g(0.09mmol)、およびK2CO3 8mmolをトルエン30mLおよび水4mLに溶解させた後、前記の中間体CのTHF溶液を添加し、還流温度で12時間撹拌した。常温まで冷却した後、ジエチルエーテル100mLを添加した。得られた溶液を水100mLで2回洗浄し、有機層を回収して無水硫酸マグネシウムで乾燥させた。溶媒を蒸発させて粗生成物を得た後、シリカゲルカラムクロマトグラフィで精製し、クロロホルム(CHCl3)とヘキサンとを用いて再結晶を行い、前記化学式(9)で表される化合物3g(収率85%)を得た。得られた生成物の1H−NMRスペクトルは、下記表6の通りであった。
アルゴンガス雰囲気下、500mLの丸底フラスコに、中間体B 1.8g(3.7mmol)、4,4,5,5−テトラメチル−2−p−トリル−[1,3,2]ジオキサボロラン0.5g(3.7mmol)、K2CO3 0.86g(8.14mmol)、Pd(PPh3)4 0.21g(0.185mmol)を入れ、さらにTHFおよび水を入れて、85℃で12時間還流させた。有機層を塩化メチレンで抽出した後、抽出した有機層をMgSO4で乾燥させ、濾過し溶媒を除去した。得られた粗生成物の固体をシリカゲルカラムクロマトグラフィ(ヘキサン−ジエチルエーテル)で精製し、黄色の固体である中間体Dを得た。
前記で得られた中間体D 1.89g(3.8mmol)をTHFに溶解させた。中間体A 2.0g(3.8mmol)、Pd(PPh3)4 0.21mg(0.185mmol)、およびK2CO3 8mmolをトルエンおよび水に溶解させた後、前記の中間体DのTHF溶液を添加し、還流温度で12時間撹拌した。常温まで冷却した後、ジエチルエーテル100mLを添加した。得られた溶液を水100mLで2回洗浄し、有機層を回収して無水硫酸マグネシウムで乾燥させた。溶媒を蒸発させて粗生成物を得た後、シリカゲルカラムクロマトグラフィで精製し、クロロホルム(CHCl3)とヘキサンとを用いて再結晶を行い、前記化学式(10)で表される化合物2.9mg(収率83%)を得た。得られた生成物の1H−NMRスペクトルは、下記表7の通りであった。
2,3−ジブロモ−ベンゾ[b]チオフェンの代わりに2,3−ジブロモ−ベンゾフランを用いたこと以外は、実施例1と同様の方法で、下記化学式(11)で表される化合物を得た(下記反応式(8)および(9)参照)。
前記反応式(8)中の中間体Eで表される化合物と前記中間体Dとを反応させたこと以外は、実施例3と同様の方法で、下記化学式(12)で表される化合物を得た(下記反応式(10)参照)。
2,3−ジブロモ−ベンゾ[b]チオフェンの代りに2,3−ジブロモ−1−メチル−1H−インドールを用いたこと以外は、実施例1と同様の方法で、下記化学式(13)で表される化合物を得た(下記反応式(11)および(12)参照)。
前記反応式(11)中の中間体Fで表される化合物と前記中間体Dとを反応させたこと以外は、実施例3と同様の方法で、下記化学式(14)で表される化合物を得た(下記反応式(13)参照)。
前記化学式(8)〜(12)で表される化合物のTg(ガラス転移温度)およびTm(融点)を測定することができないため、前記化学式(8)〜(12)で表される化合物のTd(熱分解温度)を測定して熱安定性を評価した。Tdは、熱重量分析装置(TGA:Thermo Gravimetric Analyzer)を用いて、室温から800℃まで10℃/minの速度で昇温しながら、各化合物の分解が起こる温度を測定した。その結果を下記表8に示す。
各化合物のUV吸収スペクトルおよびPL(PhotoLuminescence)スペクトルを測定することによって、各化合物の発光特性を評価した。まず、前記化学式(8)で表される化合物をトルエンに溶解させ、0.2mMの濃度にとし、株式会社島津製作所製UV−350スペクトロメーターを用いて、UV吸収スペクトルを測定した。前記化学式(9)および(10)で表される化合物についても、同様にUV吸収スペクトルを測定した。また、前記化学式(8)〜(10)で表される化合物をトルエンに溶解させ、10mMの濃度とし、キセノンランプが装着されているISC PC1スペクトロフルオロメーターを用いて、PLスペクトルを測定した。その結果を下記の表9に示す。
前記化学式(37)で表される化合物(TBADN)を、発光層のホスト材料として用い、前記化学式(8)で表される化合物を発光層のドーパントとして用い、次のような構造を有する有機発光素子を作製した:第1電極(アノード)/正孔注入層(厚さ50nm)/発光層(厚さ48nm)/電子輸送層(厚さ20nm)/電子注入層(厚さ1nm)/第2電極(カソード)(厚さ200nm)。
発光層用のドーパントとして前記化学式(8)で表される化合物の代わりに、前記化学式(9)で表される化合物を用いたことを除いては、実施例8と同様の方法で、第1電極(アノード)/正孔注入層(厚さ50nm)/発光層(厚さ48nm)/電子輸送層(厚さ20nm)/電子注入層(厚さ1nm)/第2電極(カソード)(厚さ200nm)の構造を有する有機電界発光素子を製造した。これをサンプル2とする。
発光層用のドーパントとして前記化学式(8)で表される化合物の代わりに、下記化学式(38)で表される化合物を用いたこと以外は、実施例8と同様の方法で、第1電極(アノード)/正孔注入層(厚さ50nm)/発光層(厚さ48nm)/電子輸送層(厚さ20nm)/電子注入層(厚さ1nm)/第2電極(カソード)(厚さ200nm)の構造を有する有機電界発光素子を製造した。これをサンプル3とする。
サンプル1〜3に対して、PR650(Spectroscan)Source Measurement Unit.を用いて、駆動電圧、色純度、および効率をそれぞれ評価した。結果を下記表10に示す。
12 正孔注入層、
13 正孔輸送層、
14 発光層、
15 正孔阻止層、
16 電子輸送層、
18 電子注入層、
20 第2電極。
Claims (7)
- 下記化学式(1)で表される有機発光性化合物:
R1、R2 、R 8 、およびR 9 は、それぞれ独立して、水素原子、置換されていてもよいC1〜C50の直鎖状もしくは分岐状のアルキル基、置換されていてもよいC1〜C50の直鎖状もしくは分岐状のアルコキシ基、置換されていてもよいC6〜C50のアリール基(ただし、R1およびR8の場合にアントラセニル基は除く)、置換されていてもよいC1〜C50のヘテロアリール基、下記化学式(2)で表される基、または下記化学式(3)で表される基であり、
R 3 、R 4 、R 5 、R 10 、R 11 、およびR 12 は、水素原子であり、
R 6 、R 7 、R 13 、およびR 14 は、それぞれ独立して、水素原子、置換されていてもよいC 6 〜C 50 のアリール基、または置換されていてもよいC 1 〜C 50 のヘテロアリール基であり、
Xは、下記化学式(5)で表される基、酸素原子、または硫黄原子であり、
mおよびnは、それぞれ独立して、0〜2の整数であり、同時に0ではなく、
前記化学式(1)中のR 1 、R 2 、R 8 、およびR 9 で用いられうるアルキル基、アルコキシ基、もしくはアリール基、R 6 、R 7 、R 13 、およびR 14 で用いられうるアリール基、前記化学式(2)および(3)中のZ 1 、Z 2 、Z 3 、Z 4 、およびZ 5 で用いられうるアリール基、または前記化学式(5)中のZ 8 で用いられうるアルキル基もしくはアリール基に含まれる1つ以上の水素原子は、フッ素原子;塩素原子;臭素原子;ニトリル基;ニトロ基;ヒドロキシル基;非置換、またはフッ素原子、塩素原子、臭素原子、ニトリル基、ニトロ基、もしくはヒドロキシ基で置換されたC 1 〜C 50 の直鎖状もしくは分岐状のアルキル基;非置換、またはフッ素原子、塩素原子、臭素原子、ニトリル基、ニトロ基、もしくはヒドロキシ基で置換されたC 1 〜C 50 の直鎖状もしくは分岐状のアルコキシ基;非置換、またはフッ素原子、塩素原子、臭素原子、ニトリル基、ニトロ基、もしくはヒドロキシ基で置換されたC 6 〜C 50 のアリール基;非置換、またはC 1 〜C 50 の直鎖状もしくは分岐状のアルキル基、C 1 〜C 50 の直鎖状もしくは分岐状のアルコキシ基、フッ素原子、塩素原子、臭素原子、ニトリル基、ニトロ基、もしくはヒドロキシ基で置換されたC 2 〜C 50 のヘテロアリール基;非置換、またはC 1 〜C 50 の直鎖状もしくは分岐状のアルキル基、C 1 〜C 50 の直鎖状もしくは分岐状のアルコキシ基、フッ素原子、塩素原子、臭素原子、ニトリル基、ニトロ基、もしくはヒドロキシ基で置換されたC 5 〜C 50 のシクロアルキル基;非置換、またはC 1 〜C 50 の直鎖状もしくは分岐状のアルキル基、C 1 〜C 50 の直鎖状もしくは分岐状のアルコキシ基、フッ素原子、塩素原子、臭素原子、ニトリル基、ニトロ基、もしくはヒドロキシ基で置換されたC 5 〜C 50 のヘテロシクロアルキル基;、および下記化学式(6)で表される基からなる群より選択される少なくとも1つの基で置換されていてもよい:
- 前記R1、R2、R 6 、R 7 、R 8 、R 9 、R 13 、およびR 14 は、それぞれ独立して、水素原子、メチル基、メトキシ基、フェニル基、4−[N,N−ジ(p−トリル)アミノ]フェニル基、p−(4,5−ジフェニル−2−イミダゾリル)フェニル基、p−[4,5−ジ(p−トリル)−2−イミダゾリル]フェニル基、p−トリル基、m−ターフェニル基、ナフチル基、6−メトキシナフチル基、9,10−[1,2]ベンゼノアントラセニル基、ピレニル基、フェナントレニル基、フルオレニル基、イミダゾリニル基、インドリル基、2−メチルキノリニル基、ジフェニルアミノ基、p−(N,N−ジ−p−トリル)アミノフェニル基、およびトリフェニルシリル基からなる群より選択される基であることを特徴とする、請求項1に記載の有機発光性化合物。
- 前記化学式(1)で表される化合物は、下記化学式(8)〜(35)で表される化合物からなる群より選択される少なくとも1種であることを特徴とする、請求項1または2に記載の有機発光性化合物:
- 第1電極、第2電極、および前記第1電極と前記第2電極との間に少なくとも1層の有機膜を含む有機電界発光素子であって、前記有機膜が請求項1〜3のいずれか1項に記載の有機発光性化合物を含むことを特徴とする、有機電界発光素子。
- 前記有機膜が、正孔注入層、正孔輸送層、または発光層であることを特徴とする、請求項4に記載の有機電界発光素子。
- 前記第1電極と前記第2電極との間に正孔注入層、正孔輸送層、電子阻止層、正孔阻止層、電子輸送層、および電子注入層からなる群より選択される少なくとも1つの層をさらに含むことを特徴とする、請求項4または5に記載の有機電界発光素子。
- 前記有機電界発光素子が、第1電極/正孔注入層/発光層/電子輸送層/電子注入層/第2電極、第1電極/正孔注入層/正孔輸送層/発光層/電子輸送層/電子注入層/第2電極、または第1電極/正孔注入層/正孔輸送層/発光層/正孔阻止層/電子輸送層/電子注入層/第2電極の構造を有することを特徴とする、請求項4〜6のいずれか1項に記載の有機電界発光素子。
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Free format text: JAPANESE INTERMEDIATE CODE: R250 |