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
[11]   SYNTHESIS, STRUCTURE, ELECTROCHEMISTRY, AND PHOTOPHYSICS OF METHYL-SUBSTITUTED PHENYLPYRIDINE ORTHO-METALATED IRIDIUM(III) COMPLEXES [J].
GARCES, FO ;
KING, KA ;
WATTS, RJ .
INORGANIC CHEMISTRY, 1988, 27 (20) :3464-3471
[12]   Theoretical studies of the ground and excited electronic states in cyclometalated phenylpyridine Ir(III) complexes using density functional theory [J].
Hay, PJ .
JOURNAL OF PHYSICAL CHEMISTRY A, 2002, 106 (08) :1634-1641
[13]   Luminescent transition metal complexes as sensors: Structural effects on pH response [J].
Higgins, B ;
DeGraff, BA ;
Demas, JN .
INORGANIC CHEMISTRY, 2005, 44 (19) :6662-6669
[14]   Iridium(III) complexes with orthometalated quinoxaline ligands: Subtle tuning of emission to the saturated red color [J].
Hwang, FM ;
Chen, HY ;
Chen, PS ;
Liu, CS ;
Chi, Y ;
Shu, CF ;
Wu, FL ;
Chou, PT ;
Peng, SM ;
Lee, GH .
INORGANIC CHEMISTRY, 2005, 44 (05) :1344-1353
[15]   EXCITED-STATE PROPERTIES OF A TRIPLY ORTHO-METALATED IRIDIUM(III) COMPLEX [J].
KING, KA ;
SPELLANE, PJ ;
WATTS, RJ .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1985, 107 (05) :1431-1432
[16]   Color tuning of cyclometalated iridium complexes through modification of phenylpyrazole derivatives and ancillary ligand based on ab initio calculations [J].
Kwon, TH ;
Cho, HS ;
Kim, MK ;
Kim, JW ;
Kim, JJ ;
Lee, KH ;
Park, SJ ;
Shin, IS ;
Kim, H ;
Shin, DM ;
Chung, YK ;
Hong, JI .
ORGANOMETALLICS, 2005, 24 (07) :1578-1585
[17]   Highly phosphorescent bis-cyclometalated iridium complexes: Synthesis, photophysical characterization, and use in organic light emitting diodes [J].
Lamansky, S ;
Djurovich, P ;
Murphy, D ;
Abdel-Razzaq, F ;
Lee, HE ;
Adachi, C ;
Burrows, PE ;
Forrest, SR ;
Thompson, ME .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2001, 123 (18) :4304-4312
[18]   Synthetic control of excited-state properties in cyclometalated Ir(III) complexes using ancillary ligands [J].
Li, J ;
Djurovich, PI ;
Alleyne, BD ;
Yousufuddin, M ;
Ho, NN ;
Thomas, JC ;
Peters, JC ;
Bau, R ;
Thompson, ME .
INORGANIC CHEMISTRY, 2005, 44 (06) :1713-1727
[19]   Cyclometalated iridium(III) diimine bis(biotin) complexes as the first luminescent biotin-based cross-linkers for avidin [J].
Lo, Kenneth Kam-Wing ;
Lau, Jason Shing-Yip .
INORGANIC CHEMISTRY, 2007, 46 (03) :700-709
[20]   Synthetically tailored excited states: Phosphorescent, cyclometalated iridium(III) complexes and their applications [J].
Lowry, Michael S. ;
Bernhard, Stefan .
CHEMISTRY-A EUROPEAN JOURNAL, 2006, 12 (31) :7970-7977