JP2006213723A - シクロメタル化遷移金属錯体及びこれを用いた有機電界発光素子 - Google Patents
シクロメタル化遷移金属錯体及びこれを用いた有機電界発光素子 Download PDFInfo
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- JP2006213723A JP2006213723A JP2006029026A JP2006029026A JP2006213723A JP 2006213723 A JP2006213723 A JP 2006213723A JP 2006029026 A JP2006029026 A JP 2006029026A JP 2006029026 A JP2006029026 A JP 2006029026A JP 2006213723 A JP2006213723 A JP 2006213723A
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- 229910052723 transition metal Inorganic materials 0.000 title claims abstract description 28
- 150000003624 transition metals Chemical class 0.000 title claims abstract description 28
- 239000000126 substance Substances 0.000 claims abstract description 41
- 150000004696 coordination complex Chemical class 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims description 42
- 150000001875 compounds Chemical class 0.000 claims description 34
- 239000003446 ligand Substances 0.000 claims description 18
- 229920000642 polymer Polymers 0.000 claims description 11
- 125000003118 aryl group Chemical group 0.000 claims description 10
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 10
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 10
- 125000003545 alkoxy group Chemical group 0.000 claims description 9
- 230000007935 neutral effect Effects 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 125000000217 alkyl group Chemical group 0.000 claims description 7
- 125000001424 substituent group Chemical group 0.000 claims description 7
- 125000000623 heterocyclic group Chemical group 0.000 claims description 6
- 125000001931 aliphatic group Chemical group 0.000 claims description 5
- 125000000304 alkynyl group Chemical group 0.000 claims description 5
- 125000005843 halogen group Chemical group 0.000 claims description 5
- 229910052741 iridium Inorganic materials 0.000 claims description 5
- 125000003342 alkenyl group Chemical group 0.000 claims description 4
- 125000004104 aryloxy group Chemical group 0.000 claims description 4
- 239000011159 matrix material Substances 0.000 claims description 4
- 229910052697 platinum Inorganic materials 0.000 claims description 4
- 125000004414 alkyl thio group Chemical group 0.000 claims description 3
- 125000002883 imidazolyl group Chemical group 0.000 claims description 3
- 125000003226 pyrazolyl group Chemical group 0.000 claims description 3
- 229910052703 rhodium Inorganic materials 0.000 claims description 3
- NEAQRZUHTPSBBM-UHFFFAOYSA-N 2-hydroxy-3,3-dimethyl-7-nitro-4h-isoquinolin-1-one Chemical compound C1=C([N+]([O-])=O)C=C2C(=O)N(O)C(C)(C)CC2=C1 NEAQRZUHTPSBBM-UHFFFAOYSA-N 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- 125000002252 acyl group Chemical group 0.000 claims description 2
- 125000004442 acylamino group Chemical group 0.000 claims description 2
- 125000004423 acyloxy group Chemical group 0.000 claims description 2
- 125000004453 alkoxycarbonyl group Chemical group 0.000 claims description 2
- 125000004466 alkoxycarbonylamino group Chemical group 0.000 claims description 2
- 125000003277 amino group Chemical group 0.000 claims description 2
- 125000004397 aminosulfonyl group Chemical group NS(=O)(=O)* 0.000 claims description 2
- 125000005162 aryl oxy carbonyl amino group Chemical group 0.000 claims description 2
- 125000005161 aryl oxy carbonyl group Chemical group 0.000 claims description 2
- 125000005110 aryl thio group Chemical group 0.000 claims description 2
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- 125000001951 carbamoylamino group Chemical group C(N)(=O)N* 0.000 claims description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 2
- 125000000717 hydrazino group Chemical group [H]N([*])N([H])[H] 0.000 claims description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 2
- 125000001841 imino group Chemical group [H]N=* 0.000 claims description 2
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 2
- 229910052762 osmium Inorganic materials 0.000 claims description 2
- 125000001820 oxy group Chemical group [*:1]O[*:2] 0.000 claims description 2
- PTMHPRAIXMAOOB-UHFFFAOYSA-N phosphoric acid amide group Chemical group P(N)(O)(O)=O PTMHPRAIXMAOOB-UHFFFAOYSA-N 0.000 claims description 2
- 229910052707 ruthenium Inorganic materials 0.000 claims description 2
- 125000004469 siloxy group Chemical group [SiH3]O* 0.000 claims description 2
- 125000003808 silyl group Chemical group [H][Si]([H])([H])[*] 0.000 claims description 2
- 125000000213 sulfino group Chemical group [H]OS(*)=O 0.000 claims description 2
- 125000000475 sulfinyl group Chemical group [*:2]S([*:1])=O 0.000 claims description 2
- 125000000020 sulfo group Chemical group O=S(=O)([*])O[H] 0.000 claims description 2
- 125000006296 sulfonyl amino group Chemical group [H]N(*)S(*)(=O)=O 0.000 claims description 2
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- 238000001819 mass spectrum Methods 0.000 description 8
- 125000001624 naphthyl group Chemical group 0.000 description 8
- 238000000425 proton nuclear magnetic resonance spectrum Methods 0.000 description 8
- 239000002019 doping agent Substances 0.000 description 7
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- 0 *C(CCCC1)CCC*2(C3)C1C3CC2 Chemical compound *C(CCCC1)CCC*2(C3)C1C3CC2 0.000 description 5
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- ZKHNOHWHSQEUFZ-UHFFFAOYSA-N boron;1h-imidazole Chemical compound [B].C1=CNC=N1 ZKHNOHWHSQEUFZ-UHFFFAOYSA-N 0.000 description 4
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- 238000004949 mass spectrometry Methods 0.000 description 4
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- 125000000524 functional group Chemical group 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
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- 239000000758 substrate Substances 0.000 description 3
- LKAPTZKZHMOIRE-KVTDHHQDSA-N (2s,3s,4s,5r)-3,4-dihydroxy-5-(hydroxymethyl)oxolane-2-carbaldehyde Chemical compound OC[C@H]1O[C@H](C=O)[C@@H](O)[C@@H]1O LKAPTZKZHMOIRE-KVTDHHQDSA-N 0.000 description 2
- VFUDMQLBKNMONU-UHFFFAOYSA-N 9-[4-(4-carbazol-9-ylphenyl)phenyl]carbazole Chemical group 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
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 description 2
- 239000013522 chelant Substances 0.000 description 2
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- LKAPTZKZHMOIRE-UHFFFAOYSA-N chitose Natural products OCC1OC(C=O)C(O)C1O LKAPTZKZHMOIRE-UHFFFAOYSA-N 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 125000000596 cyclohexenyl group Chemical group C1(=CCCCC1)* 0.000 description 2
- VURFVHCLMJOLKN-UHFFFAOYSA-N diphosphane Chemical compound PP VURFVHCLMJOLKN-UHFFFAOYSA-N 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 125000001072 heteroaryl group Chemical group 0.000 description 2
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- 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 2
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- QQLRSCZSKQTFGY-UHFFFAOYSA-N (2,4-difluorophenyl)boronic acid Chemical compound OB(O)C1=CC=C(F)C=C1F QQLRSCZSKQTFGY-UHFFFAOYSA-N 0.000 description 1
- 125000003837 (C1-C20) alkyl group Chemical group 0.000 description 1
- 125000006736 (C6-C20) aryl group Chemical group 0.000 description 1
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- MCTWTZJPVLRJOU-UHFFFAOYSA-N 1-methyl-1H-imidazole Chemical compound CN1C=CN=C1 MCTWTZJPVLRJOU-UHFFFAOYSA-N 0.000 description 1
- KYEYSSAKUJLEHV-UHFFFAOYSA-N 2'-anthracen-1-yl-1,1'-spirobi[fluorene] Chemical compound C12(C(=CC=C3C4=CC=CC=C4C=C13)C1=CC=CC3=CC4=CC=CC=C4C=C13)C=CC=C1C3=CC=CC=C3C=C12 KYEYSSAKUJLEHV-UHFFFAOYSA-N 0.000 description 1
- 125000004797 2,2,2-trichloroethoxy group Chemical group ClC(CO*)(Cl)Cl 0.000 description 1
- SSABEFIRGJISFH-UHFFFAOYSA-N 2-(2,4-difluorophenyl)pyridine Chemical compound FC1=CC(F)=CC=C1C1=CC=CC=N1 SSABEFIRGJISFH-UHFFFAOYSA-N 0.000 description 1
- LSZMVESSGLHDJE-UHFFFAOYSA-N 2-bromo-4-methylpyridine Chemical compound CC1=CC=NC(Br)=C1 LSZMVESSGLHDJE-UHFFFAOYSA-N 0.000 description 1
- XEBMNCFTJBFRJG-UHFFFAOYSA-N 2-bromo-n,n-dimethylpyridin-4-amine Chemical compound CN(C)C1=CC=NC(Br)=C1 XEBMNCFTJBFRJG-UHFFFAOYSA-N 0.000 description 1
- 125000006040 2-hexenyl group Chemical group 0.000 description 1
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- 125000003542 3-methylbutan-2-yl group Chemical group [H]C([H])([H])C([H])(*)C([H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
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- 229910016036 BaF 2 Inorganic materials 0.000 description 1
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- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920000128 polypyrrole Polymers 0.000 description 1
- 229920000123 polythiophene Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 125000006410 propenylene group Chemical group 0.000 description 1
- 125000004309 pyranyl group Chemical group O1C(C=CC=C1)* 0.000 description 1
- 125000003373 pyrazinyl group Chemical group 0.000 description 1
- 150000003217 pyrazoles Chemical group 0.000 description 1
- 125000002943 quinolinyl group Chemical group N1=C(C=CC2=CC=CC=C12)* 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000001302 tertiary amino group Chemical group 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229930192474 thiophene Natural products 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- TUQOTMZNTHZOKS-UHFFFAOYSA-N tributylphosphine Chemical compound CCCCP(CCCC)CCCC TUQOTMZNTHZOKS-UHFFFAOYSA-N 0.000 description 1
- 125000000876 trifluoromethoxy group Chemical group FC(F)(F)O* 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 125000005023 xylyl group Chemical group 0.000 description 1
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Abstract
Description
前記式中、
Mは、遷移金属であり、
Xは、NまたはCであり、
Lは、中性配位子であり、
CY1及びCY2は、置換もしくは非置換の芳香族または脂肪族環であり、
mは、1または2であり、
A4は、置換もしくは非置換のイミダゾリレン、もしくはピラゾリレン、またはこれらの誘導体であり、A1、A2、及びA3はそれぞれ独立して水素原子、置換もしくは非置換のイミダゾリルもしくはピラゾリル、またはこれらの誘導体である。
前記式中、
Mは、遷移金属であり、
Xは、NまたはCであり、
Lは、中性配位子であり、
CY1及びCY2は、置換もしくは非置換の芳香族または脂肪族環であり、
mは、1または2であり、
A4は、置換もしくは非置換のイミダゾリレンもしくはピラゾリレン、またはこれらの誘導体であり、A1、A2、及びA3はそれぞれ独立して、水素原子、置換もしくは非置換のイミダゾリルもしくはピラゾリル、またはこれらの誘導体である。
前記式中、
Mは、遷移金属であり、
Xは、NまたはCであり、
Lは、中性配位子であり、
CY1及びCY2は置換もしくは非置換の芳香族または脂肪族環であり、
mは、1または2であり、
R1、R2、R3及びR4は、それぞれ独立して、置換基または水素原子であり、
nは、1ないし3の整数である。
前記式中、
Mは、遷移金属であり、
Lは、中性配位子であり、
mは、1または2であり、
R5、R6、R7、R8、R9、R10、R11、R12、Rn及びR'は、それぞれ独立して、置換基または水素原子であり、ここで、nは、1ないし3の整数であり、
前記n1は、1ないし4の整数である。
本発明によるシクロメタル化遷移金属錯体は、400nmないし650nmの波長帯で発光特性を有する。
MeOF2ppyダイマー0.1mmol及びN−メチルイミダゾール0.25mmolをCHCl320ml中、40℃で6時間攪拌した。減圧下に溶媒を蒸発させ、黄緑色の粉末を溶離液としてCH2Cl2とアセトン(10:0.5)を使用するシリカカラムに通過させた。溶媒の蒸発後、緑色粉末を得た。1H NMR及びMassスペクトルでMeOF2ppyIrMe−imz Cl化合物を確認した。
MeOF2ppyIrMe−imz Cl 0.1mmolをクロロホルム10mL中に溶解させた。ここにNaBimz40.5mmolを加えてからメタノール10mLを加えた。混合物を50℃で4ないし6時間攪拌した。溶媒を減圧下に蒸発させて除去し、CH2Cl220mLで処理し、次いでろ過した。減圧下の蒸発によってCH2Cl2を除去して黄緑色の粉末を得た(収率:65%)。1H NMR及びMassスペクトルで(MeOF2ppy)2IrMe−imz Bimz4の化合物を確認した。
F2ppyダイマー0.1mmol及びベンジルイソシアニド(ベンズ−イソ−ニトリル)0.25mmolをCHCl320ml中、室温で24時間攪拌した。減圧下に溶媒を蒸発させ、黄色粉末を溶離液としてCH2Cl2とアセトン(10:0.5)を使用するシリカカラムに通過させた。溶媒の蒸発後、黄色粉末を得た。1H NMR及びMassスペクトルでF2ppyIrBenz−iso−CN Cl化合物を確認した。
F2ppyIrBenz−iso−CN Cl 0.1mmolをクロロホルム10mL中に溶解させた。ここにNaBimz40.5mmolを加えてからメタノール10mLを加えた。混合物を50℃で4ないし6時間攪拌した。溶媒を減圧下に蒸発させて除去し、CH2Cl220mLで処理し、次いでろ過した。減圧下の蒸発によってCH2Cl2を除去して黄色粉末を得た(収率:50%)。1H NMR及びMassスペクトルで(F2ppy)2IrBenz−iso−CN Bimz4の化合物を確認した。
F2ppyダイマー0.1mmol及びトリ−n−ブチルホスフィン0.25mmolをCHCl320ml中、室温で24時間攪拌した。減圧下に溶媒を蒸発させ、黄色粉末を溶離液としてCH2Cl2とアセトン(10:1)を使用するシリカカラムに通過させた。溶媒の蒸発後、黄色粉末を得た。1H NMR及びMassスペクトルでF2ppyIrP(n−bu)3 Cl化合物を確認した。
F2ppyIrP(n−bu)3 Cl 0.1mmolをクロロホルム10mL中に溶解させた。ここにNaBimz40.5mmolを加えてからメタノール10mLを加えた。混合物を50℃で4ないし6時間攪拌した。溶媒を減圧下に蒸発させて除去し、CH2Cl220mLで処理し、次いでろ過した。減圧下の蒸発によってCH2Cl2を除去して黄色粉末を得た(収率:60%)。1H NMR及びMassスペクトルで(F2ppy)2IrP(n−bu)3 Bimz4の化合物を確認した。
実施例6
ITOがコーティングされた透明電極基板20を洗浄した後、ITOを感光性樹脂とエッチング液を利用してパターニングしてITO電極パターン10を形成し、これをさらに洗浄した。このように洗浄された結果物上にPEDOT{poly(3,4−ethylenedioxythiophene)}[AI 4083] を約50nmの厚さにコーティングした後、120℃で約5分間ベーキングしてホール注入層11を形成した。
(MeOF2ppy)2IrMe−imz4(化学式7)の含有量を6質量%使用したことを除いては実施例6と同様にEL素子を製作した。
(MeOF2ppy)2IrMe−imz4(化学式7)の含有量を8質量%使用したことを除いては実施例6と同様にEL素子を製作した。
(MeOF2ppy)2IrMe−imz4(化学式7)の含有量を10質量%使用したことを除いては実施例6と同様にEL素子を製作した。
(F2ppy)2IrP(n−bu3)Bimz4(化学式15)の含有量を10質量%使用したことを除いては実施例6と同様にEL素子を製作した。
11 ホール注入層、
12 発光層、
14 カソード、
15 電子輸送層、
20 基板。
Claims (9)
- 前記A1ないしA4は、それぞれ独立して、水素原子、アルキル基、アルケニル基、アルキニル基、アリール基、アミノ基、アルコキシ基、アリールオキシ基、複素環オキシ基、アシル基、アルコキシカルボニル基、アリールオキシカルボニル基、アシルオキシ基、アシルアミノ基、アルコキシカルボニルアミノ基、アリールオキシカルボニルアミノ基、スルホニルアミノ基、スルファモイル基、カルバモイル基、アルキルチオ基、アリールチオ基、複素環チオ基、スルホニル基、スルフィニル基、ウレイド基、燐酸アミド基、ヒドロキシ基、メルカプト基、ハロゲン原子、シアノ基、スルホ基、カルボキシル基、ニトロ基、ヒドロキサム酸基、スルフィノ基、ヒドラジノ基、イミノ基、複素環基、シリル基、及びシリルオキシ基よりなる群から選択される置換基により置換されることを特徴とする請求項1または2に記載の金属錯体。
- Mは、Ru、Rh、Os、Ir、Pt、またはAuであることを特徴とする請求項1に記載の金属錯体。
- 一対の電極の間に有機膜を含む有機電界発光素子において、
前記有機膜が請求項1ないし6のうち何れか1項の金属錯体を含むことを特徴とする有機電界発光素子。 - 前記有機膜は、高分子ホスト、高分子ホストと低分子ホストとの混合物、低分子ホスト、及び非発光高分子マトリックスよりなる群から選択された少なくとも一つをさらに含むことを特徴とする請求項7に記載の有機電界発光素子。
- 前記有機膜は、緑色発光物質または赤色発光物質をさらに含むことを特徴とする請求項7または8に記載の有機電界発光素子。
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DE112016006231T5 (de) | 2016-01-14 | 2018-10-18 | National Institute Of Advanced Industrial Science And Technology | Verfahren zum Herstellen eines cyclometallierten Iridiumkomplexes |
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US7417151B2 (en) * | 2004-12-10 | 2008-08-26 | The University Of Akron | Boron-based organic cations and related methods |
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WO2004101707A1 (en) * | 2003-05-16 | 2004-11-25 | Isis Innovation Limited | Organic phosphorescent material and organic optoelectronic device |
Cited By (3)
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US10053479B2 (en) | 2014-01-10 | 2018-08-21 | Tanaka Kikinzoku Kogyo K.K. | Raw material and production method for cyclometalated iridium complex |
DE112016006231T5 (de) | 2016-01-14 | 2018-10-18 | National Institute Of Advanced Industrial Science And Technology | Verfahren zum Herstellen eines cyclometallierten Iridiumkomplexes |
US10533027B2 (en) | 2016-01-14 | 2020-01-14 | Tanaka Kikinzoku Kogyo K.K. | Method for producing cyclometalated iridium complex |
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US20060177695A1 (en) | 2006-08-10 |
US7670692B2 (en) | 2010-03-02 |
CN1916008A (zh) | 2007-02-21 |
KR101202342B1 (ko) | 2012-11-16 |
KR20060090028A (ko) | 2006-08-10 |
JP5066339B2 (ja) | 2012-11-07 |
CN1916008B (zh) | 2013-05-29 |
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