JP2005060374A - 有機金属錯体および前記有機金属錯体を用いた電界発光素子 - Google Patents
有機金属錯体および前記有機金属錯体を用いた電界発光素子 Download PDFInfo
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- JP2005060374A JP2005060374A JP2004217219A JP2004217219A JP2005060374A JP 2005060374 A JP2005060374 A JP 2005060374A JP 2004217219 A JP2004217219 A JP 2004217219A JP 2004217219 A JP2004217219 A JP 2004217219A JP 2005060374 A JP2005060374 A JP 2005060374A
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- 125000002524 organometallic group Chemical group 0.000 title claims abstract description 82
- 239000003446 ligand Substances 0.000 claims abstract description 55
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 17
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 12
- 150000002367 halogens Chemical class 0.000 claims abstract description 12
- 125000003545 alkoxy group Chemical group 0.000 claims abstract description 11
- 125000003118 aryl group Chemical group 0.000 claims abstract description 11
- 125000000732 arylene group Chemical group 0.000 claims abstract description 11
- 125000000623 heterocyclic group Chemical group 0.000 claims abstract description 10
- 125000001424 substituent group Chemical group 0.000 claims description 40
- 239000013522 chelant Substances 0.000 claims description 19
- 239000001257 hydrogen Substances 0.000 claims description 15
- 229910052739 hydrogen Inorganic materials 0.000 claims description 15
- 150000002431 hydrogen Chemical class 0.000 claims description 10
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 9
- 125000005594 diketone group Chemical group 0.000 claims description 9
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 9
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 9
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 8
- 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 claims description 7
- 150000004696 coordination complex Chemical class 0.000 claims description 7
- 229910052741 iridium Inorganic materials 0.000 claims description 6
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 5
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 150000002902 organometallic compounds Chemical class 0.000 abstract 3
- 239000010410 layer Substances 0.000 description 93
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- 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 6
- YRKCREAYFQTBPV-UHFFFAOYSA-N acetylacetone Chemical compound CC(=O)CC(C)=O YRKCREAYFQTBPV-UHFFFAOYSA-N 0.000 description 6
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- ZNJRONVKWRHYBF-VOTSOKGWSA-N 4-(dicyanomethylene)-2-methyl-6-julolidyl-9-enyl-4h-pyran Chemical compound O1C(C)=CC(=C(C#N)C#N)C=C1\C=C\C1=CC(CCCN2CCC3)=C2C3=C1 ZNJRONVKWRHYBF-VOTSOKGWSA-N 0.000 description 5
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- 238000005160 1H NMR spectroscopy Methods 0.000 description 4
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 4
- 229940093475 2-ethoxyethanol Drugs 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- IAZDPXIOMUYVGZ-WFGJKAKNSA-N Dimethyl sulfoxide Chemical compound [2H]C([2H])([2H])S(=O)C([2H])([2H])[2H] IAZDPXIOMUYVGZ-WFGJKAKNSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- -1 Li and Cs Chemical class 0.000 description 4
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- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 4
- 239000010405 anode material Substances 0.000 description 4
- UFVXQDWNSAGPHN-UHFFFAOYSA-K bis[(2-methylquinolin-8-yl)oxy]-(4-phenylphenoxy)alumane Chemical compound [Al+3].C1=CC=C([O-])C2=NC(C)=CC=C21.C1=CC=C([O-])C2=NC(C)=CC=C21.C1=CC([O-])=CC=C1C1=CC=CC=C1 UFVXQDWNSAGPHN-UHFFFAOYSA-K 0.000 description 4
- 230000005284 excitation Effects 0.000 description 4
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- 238000007122 ortho-metalation reaction Methods 0.000 description 4
- 239000000565 sealant Substances 0.000 description 4
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- FQJQNLKWTRGIEB-UHFFFAOYSA-N 2-(4-tert-butylphenyl)-5-[3-[5-(4-tert-butylphenyl)-1,3,4-oxadiazol-2-yl]phenyl]-1,3,4-oxadiazole Chemical compound C1=CC(C(C)(C)C)=CC=C1C1=NN=C(C=2C=C(C=CC=2)C=2OC(=NN=2)C=2C=CC(=CC=2)C(C)(C)C)O1 FQJQNLKWTRGIEB-UHFFFAOYSA-N 0.000 description 3
- DHDHJYNTEFLIHY-UHFFFAOYSA-N 4,7-diphenyl-1,10-phenanthroline Chemical compound C1=CC=CC=C1C1=CC=NC2=C1C=CC1=C(C=3C=CC=CC=3)C=CN=C21 DHDHJYNTEFLIHY-UHFFFAOYSA-N 0.000 description 3
- AYVKPQKPKHOZSC-UHFFFAOYSA-N 9h-fluoren-9-yl(phenyl)methanone Chemical compound C12=CC=CC=C2C2=CC=CC=C2C1C(=O)C1=CC=CC=C1 AYVKPQKPKHOZSC-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical group C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 3
- 239000007983 Tris buffer Substances 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
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- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 3
- IBHBKWKFFTZAHE-UHFFFAOYSA-N n-[4-[4-(n-naphthalen-1-ylanilino)phenyl]phenyl]-n-phenylnaphthalen-1-amine Chemical group 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 3
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- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
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- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- BOOQTIHIKDDPRW-UHFFFAOYSA-N dipropyltryptamine Chemical compound C1=CC=C2C(CCN(CCC)CCC)=CNC2=C1 BOOQTIHIKDDPRW-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
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- 239000005457 ice water Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 150000002503 iridium Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- AHLBNYSZXLDEJQ-FWEHEUNISA-N orlistat Chemical compound CCCCCCCCCCC[C@H](OC(=O)[C@H](CC(C)C)NC=O)C[C@@H]1OC(=O)[C@H]1CCCCCC AHLBNYSZXLDEJQ-FWEHEUNISA-N 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 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
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- 229920000767 polyaniline Polymers 0.000 description 1
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- 150000004032 porphyrins Chemical class 0.000 description 1
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- YYMBJDOZVAITBP-UHFFFAOYSA-N rubrene Chemical compound C1=CC=CC=C1C(C1=C(C=2C=CC=CC=2)C2=CC=CC=C2C(C=2C=CC=CC=2)=C11)=C(C=CC=C2)C2=C1C1=CC=CC=C1 YYMBJDOZVAITBP-UHFFFAOYSA-N 0.000 description 1
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- ITMCEJHCFYSIIV-UHFFFAOYSA-N triflic acid Chemical compound OS(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-N 0.000 description 1
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Images
Abstract
合成の容易な配位子を用いてオルトメタル化し、燐光を発する新たな有機金属錯体を安価に提供する。また、前記有機金属錯体を用いて発光効率の高い電界発光素子を提供する。さらには、前記電界発光素子を用いて消費電力の低い発光装置を提供する。
【解決手段】
本発明において、[化1]に代表される有機金属錯体を合成する。また、これを電界発光素子に適用する。
【化1】
(式中、R1〜R4は水素、ハロゲン元素、アルキル基、アルコキシル基、アリール基、複素環残基のいずれかを表す。R5〜R6は、水素またはアルキル基を表す。またArは、アリーレン基または複素環残基を表す。また、Mは第9族元素または第10族元素を表し、前記Mが第9族元素の場合はn=2、第10族元素の場合はn=1となる。またLは、モノアニオン性の配位子を表す。)
Description
井上晴夫、外3名、基礎化学コース 光化学I(丸善株式会社)、106−110
筒井哲夫、応用物理学会 有機分子・バイオエレクトロニクス分科会 第3回講習会テキスト、31−37(1993)
D.F.オブライエン、外3名、アプライド フィジクス レターズ、vol.74、No.3、442−444(1999) テツオ ツツイ、外8名、ジャパニーズ ジャーナル オブ アプライド フィジクス、vol.38、L1502−L1504(1999)
M.A.バルド、外2名、ネイチャー(ロンドン)、vol.403、750−753(2000)
M.トンプソン、外10名、第10回 インターナショナル ワークショップ オン インオーガニック アンド オーガニック エレクトロルミネッセンス(EL ’00)、35−38
一般式(1)または(2)で表される本発明の有機金属錯体は、下記一般式(10)に示す配位子をオルトメタル化反応させることにより得ることができる。
一般式(26)または(27)で表される本発明の有機金属錯体は、下記一般式(28)に示す配位子をオルトメタル化反応させることにより得ることができる。
本実施の形態3では、本発明の有機金属錯体を含む発光層と、低分子系材料からなる正孔注入層、正孔輸送層、正孔阻止層(ホールブロッキング層)および電子輸送層を有する電界発光素子の素子構成について図1を用いて説明する。
本実施の形態4では、本発明の有機金属錯体を含む発光層と、高分子系材料からなる正孔注入層を有し、これらを湿式プロセスにて形成する電界発光素子の素子構成について図2を用いて説明する。
本実施の形態5では、本発明の有機金属錯体と蛍光性化合物の二種類を含む発光層と、低分子系材料からなる正孔注入層、正孔輸送層、正孔阻止層(ホールブロッキング層)および電子輸送層を有する電界発光素子の素子構成について図3を用いて説明する。
まず、フェニルイソプロピルケトン7.4gとフェニルヒドラジン6.5gを窒素雰囲気下にて130℃で4時間加熱撹拌した。有機層をエーテルにて抽出し、溶媒を留去した。これをエタノール100mlに溶解し、塩化亜鉛50gを添加し、窒素雰囲気下にて20時間還流した。その後、アンモニア水溶液を加え、有機層をエーテルにて抽出し、水洗、乾燥した。溶媒を留去することにより、配位子pdmi(2−フェニル−3,3−ジメチルインドレニン)を得た(赤色液体、収率82%)。
次に、2−エトキシエタノール30mlと水10mlとの混合液を溶媒として、上記で得たHpdmiを3.00g、塩化イリジウム(IrCl3・HCl・H2O)を1.60g混合し、窒素雰囲気下24時間還流することにより、複核錯体[Ir(pdmi)2Cl]2 を得た(赤褐色粉末、収率65%)。
さらに、2−エトキシエタノール30mlを溶媒として、上記で得られた[Ir(pdmi)2Cl]2 を1.00g、アセチルアセトン(Hacac)を0.23ml、炭酸ナトリウムを0.77g混合し、窒素雰囲気下にて12時間還流した。これを濾過して得られた溶液を、ヘキサン/ジクロロメタン溶媒にてカラム精製した。エタノールより再結晶を行い、本発明の有機金属錯体Ir(pdmi)2(acac)を得た(赤色粉末、収率25%)。得られたIr(pdmi)2(acac)の核磁気共鳴分光法(1H−NMR)による分析結果は下記の通りである。
1H−NMR.δ(DMSO−d6):7.79(d,2H),7.69(m,2H),7.47(m,2H),7.36(m,4H),6.83(t,2H),6.62(t,2H),6.50(d,2H),5.15(s,1H),1.76(s,6H),1.71(d,12H)
ステップ1として、配位子の原料となる9−ベンゾイルフルオレンを合成する。まず、9−フルオレンカルボン酸3.50gとトリフルオロメタンスルホン酸25gに脱水ベンゼン150mlを加え、窒素雰囲気下63℃にて4時間加熱撹拌した。次に、室温に冷却した溶液に氷水2lを加え、有機層をジクロロメタンにて分取した。さらに、飽和炭酸水素ナトリウムと飽和食塩水にて洗浄し、硫酸ナトリウムで乾燥した後、溶媒を濃縮した。カラムクロマトグラフィー(ヘキサン/ジクロロメタン)で精製することにより、目的物である9−ベンゾイルフルオレンを得た(白色粉末、収率46%)。
次に、上記で得られた9−ベンゾイルフルオレン1.95gとフェニルヒドラジン0.78gに酢酸20mlを加え、加熱還流下1時間半撹拌した。室温に冷却した後、カラムクロマトグラフィー(ジクロロメタン系)で精製することにより、配位子である2−フェニル−3−(スピロ−9−フルオレニル)−インドレニン(略称:pif)を得た(淡黄色粉末、収率57%)。
まず、2−エトキシエタノール30mlと水10mlとの混合液を溶媒として、上記で得られた配位子pifを1.42g、塩化イリジウム(IrCl3・HCl・H2O)を0.48g混合し、窒素雰囲気下14時間還流することにより、複核錯体[Ir(pif)2Cl]2 を得た(赤色粉末、収率80%)。
さらに、2−エトキシエタノール30mlを溶媒として、上記で得られた[Ir(pif)2Cl]2 を1.00g、アセチルアセトン(Hacac)を0.17ml、炭酸ナトリウムを0.58g混合し、窒素雰囲気下にて15時間還流した。これを濾過して得られた溶液を、カラムクロマトグラフィー(ジクロロメタン系)で精製した。ジクロロメタン/メタノール溶媒より再結晶を行い、上記構造式(32)で表される本発明の有機金属錯体Ir(pif)2(acac)を得た(赤色粉末、収率39%)。得られたIr(pif)2(acac)の核磁気共鳴分光法(1H−NMR)による分析結果は下記の通りである。
1H−NMR.δ(DMSO−d6):8.21(q,4H),7.64(d,2H),7.56(q,4H),7.44(t,2H),7.32(q,4H),7.20(t,2H),6.99(d,2H),6.88(d,2H),6.77(d,4H),6.64(t,2H),6.39(t,2H),6.14(d,2H),5.42(s,1H),1.96(s,6H)
Claims (10)
- 下記一般式(1)で表される有機金属錯体。
- 下記一般式(2)で表される有機金属錯体。
- 下記一般式(10)で表される有機金属錯体。
- 下記一般式(11)で表される有機金属錯体。
- 請求項1乃至請求項6のいずれか一項に記載の有機金属錯体において、前記Mは、イリジウム元素または白金元素を表すことを特徴とする有機金属錯体。
- 請求項1乃至請求項7のいずれか一項に記載の有機金属錯体を用いたことを特徴とする電界発光素子。
- 請求項1乃至請求項7のいずれか一項に記載の有機金属錯体を、発光体として用いたことを特徴とする電界発光素子。
- 請求項8または請求項9に記載の電界発光素子を用いたことを特徴とする発光装置。
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KR101275809B1 (ko) * | 2006-02-08 | 2013-06-18 | 삼성디스플레이 주식회사 | 전이금속 화합물 및 이를 이용한 유기 전계 발광 소자 |
JP2009540563A (ja) * | 2006-06-05 | 2009-11-19 | ザ、トラスティーズ オブ プリンストン ユニバーシティ | りん光増感蛍光発光層を有する有機発光装置 |
JP2013179088A (ja) * | 2006-06-05 | 2013-09-09 | Trustees Of Princeton Univ | りん光増感蛍光発光層を有する有機発光装置 |
WO2011024737A1 (ja) | 2009-08-27 | 2011-03-03 | 独立行政法人産業技術総合研究所 | イリジウム錯体ならびに該化合物からなる発光材料 |
WO2011024761A1 (ja) | 2009-08-27 | 2011-03-03 | 住友化学株式会社 | 金属錯体組成物及び錯体高分子 |
CN114380735A (zh) * | 2022-02-18 | 2022-04-22 | 河南师范大学 | 一种合成芴和茚并[2,1-b]吲哚基螺环吲哚的方法 |
CN114380735B (zh) * | 2022-02-18 | 2024-02-06 | 河南师范大学 | 一种合成芴和茚并[2,1-b]吲哚基螺环吲哚的方法 |
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