Synthesis and characterization of cyclometalated iridium(III) complexes containing pyrimidine-based ligands

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题名:	Synthesis and characterization of cyclometalated iridium(III) complexes containing pyrimidine-based ligands
作者:	Lin,CF;Huang,WS;Chou,HH;Lin,JT
贡献者:	中央大學
关键词:	LIGHT-EMITTING-DIODES;BENZOIMIDAZOLE-BASED LIGANDS;CROSS-COUPLING REACTIONS;PHOSPHORESCENT OLEDS;ELECTROLUMINESCENT DEVICES;ROOM-TEMPERATURE;ENERGY-TRANSFER;EXCITED-STATES;SOLAR-CELLS;EFFICIENT
日期:	2009
上传时间:	2010-06-29 19:46:35 (UTC+8)
出版者:	化學研究所
摘要:	New pyrimidine derivatives (pyr) have been synthesized using palladium-catalyzed Suzuki coupling reaction. These compounds can undergo cyclometalation with iridium trichloride to form bis-cyclometalated iridium complexes, (pyr)(2)Ir(acac) (acac = acetylacetonate; pyr = cyclometalated pyr). The substituents at the both cyclometalated phenyl ring and pyrimidine ring were found to affect both electrochemical and photophysical properties of the complexes. Computation results on these complexes are consistent with the electrochemical and photophysical data. The complexes are green-emitting with good solution quantum yields at similar to 0.30. Light-emitting devices using these complexes as dopants were fabricated, and the device performance at 100 mA/cm(2) are moderate: 9 (17 481 cd/m(2), 4.8%, 18 cd/A, 5.1 lm/W); 10 (18 704 cd/m(2), 4.9%, 18.9 cd/A, 4.7 lm/W); 13 (20 942 cd/m(2), 5.4%, 21.0 cd/A, 6.1 lm/W). (C) 2009 Elsevier B.V. All rights reserved.
關聯:	JOURNAL OF ORGANOMETALLIC CHEMISTRY
显示于类别:	[化學研究所] 期刊論文

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