Blue phosphorescent Iridium(III) complex. A reaction path on the triplet potential energy surface

被引:54
作者
Treboux, Gabin [1 ]
Mizukami, Junji [1 ]
Yabe, Masayoshi [1 ]
Nakamura, Shinichiro [1 ]
机构
[1] Sci & Technol Res Ctr Inc, Mitsubishi Chem Grp, Aoba Ku, Yokohama, Kanagawa 2278502, Japan
关键词
D O I
10.1246/cl.2007.1344
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The potential energy surfaces associated with the triplet electronic state of the Ir(ppZ)(3) and Ir(PPY)(3) cyclometalated complexes, respectively, are calculated using density functional theory [where ppz = 1-phenylpyrazolyl-NC2', ppy = 2-phenylpyridyl]. Both surfaces present a metal-to-ligand charger-transfer energy minimum and a ligand-field energy minimum, connected by a chemical path involving only the rotation of one pyrazolyl or pyridyl group. Unlike lr(PPY)(3), the lowest energy minimum of lr(ppZ)(3) is the ligand-field state.
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页码:1344 / 1345
页数:2
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