New heteroleptic iridium complexes having one biphenyl-2,2′-diyl and two bipyridyl based ligands

被引:19
作者
Lee, Kyu Reon [1 ]
Eum, Min-Sik [1 ]
Chin, Chong Shik [1 ]
Lee, Seung Chan [2 ,3 ]
Kim, In June [2 ,3 ]
Kim, Young Sik [2 ,3 ]
Kim, Youngmee [4 ]
Kim, Sung-Jin [4 ]
Hur, Nam Hwi [1 ]
机构
[1] Sogang Univ, Dept Chem, Seoul 121742, South Korea
[2] Hongik Univ, Dept Sci, Seoul 121791, South Korea
[3] Hongik Univ, Dept Informat Display Engn, Seoul 121791, South Korea
[4] Ewha Womans Univ, Dept Chem & Nano Sci, Seoul 120750, South Korea
关键词
EXCITED-STATE PROPERTIES; PHOSPHORESCENT EMISSION; BLUE; MECHANISM;
D O I
10.1039/b904016c
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The structural and spectroscopic properties of new heteroleptic iridium complexes having a biphenyl and two bipyridyl based ligands are reported; DFT calculations reveal that the HOMO is composed of the biphenyl and iridium d orbitals while the LUMO is localized mainly on the two bipyridyl based ligands.
引用
收藏
页码:3650 / 3652
页数:3
相关论文
共 33 条
[1]   Endothermic energy transfer: A mechanism for generating very efficient high-energy phosphorescent emission in organic materials [J].
Adachi, C ;
Kwong, RC ;
Djurovich, P ;
Adamovich, V ;
Baldo, MA ;
Thompson, ME ;
Forrest, SR .
APPLIED PHYSICS LETTERS, 2001, 79 (13) :2082-2084
[2]   Highly efficient phosphorescent emission from organic electroluminescent devices [J].
Baldo, MA ;
O'Brien, DF ;
You, Y ;
Shoustikov, A ;
Sibley, S ;
Thompson, ME ;
Forrest, SR .
NATURE, 1998, 395 (6698) :151-154
[3]   Synthesis and characterization of phosphorescent cyclometalated platinum complexes [J].
Brooks, J ;
Babayan, Y ;
Lamansky, S ;
Djurovich, PI ;
Tsyba, I ;
Bau, R ;
Thompson, ME .
INORGANIC CHEMISTRY, 2002, 41 (12) :3055-3066
[4]   Phosphorescent dyes for organic light-emitting diodes [J].
Chou, Pi-Tai ;
Chi, Yun .
CHEMISTRY-A EUROPEAN JOURNAL, 2007, 13 (02) :380-395
[5]   EVIDENCE FOR STRONG MIXING BETWEEN THE LC AND MLCT EXCITED-STATES IN BIS(2-PHENYLPYRIDINATO-C2,N') (2,2'-BIPYRIDINE)IRIDIUM(III) [J].
COLOMBO, MG ;
HAUSER, A ;
GUDEL, HU .
INORGANIC CHEMISTRY, 1993, 32 (14) :3088-3092
[6]   Controlling phosphorescence color and quantum yields in cationic iridium complexes:: A combined experimental and theoretical study [J].
De Angelis, Filippo ;
Fantacci, Simona ;
Evans, Nicholas ;
Klein, Cedric ;
Zakeeruddin, Shaik M. ;
Moser, Jacques-E. ;
Kalyanasundaram, Kuppuswamy ;
Bolink, Henk J. ;
Gratzel, M. ;
Nazeeruddin, Mohammed K. .
INORGANIC CHEMISTRY, 2007, 46 (15) :5989-6001
[7]   Iridium luminophore complexes for unimolecular oxygen sensors [J].
DeRosa, MC ;
Hodgson, DJ ;
Enright, GD ;
Dawson, B ;
Evans, CEB ;
Crutchley, RJ .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (24) :7619-7626
[8]   Synthesis, characterization, and DFT/TD-DFT calculations of highly phosphorescent blue light-emitting anionic iridium complexes [J].
Di Censo, Davide ;
Fantacci, Simona ;
De Angelis, Filippo ;
Klein, Cedric ;
Evans, Nick ;
Kalyanasundaram, K. ;
Bolink, Henk J. ;
Gratzel, Michael ;
Nazeeruddin, Mohammad K. .
INORGANIC CHEMISTRY, 2008, 47 (03) :980-989
[9]  
Douglas B.E., 1994, CONCEPTS MODELS INOR, V3rd
[10]   Ligand effects on luminescence of new type blue light-emitting mono(2-phenylpyridinato)iridium(III) complexes [J].
Eum, Min-Sik ;
Chin, Chong Shik ;
Kim, Song Yi ;
Kim, Choongil ;
Kang, Sung Kwon ;
Hur, Nam Hwi ;
Seo, Ji Hoon ;
Kim, Gu Young ;
Kim, Young Kwan .
INORGANIC CHEMISTRY, 2008, 47 (14) :6289-6295