Ruthenium(II) Polyimine Complexes with a Long-Lived 3IL Excited State or a 3MLCT/3IL Equilibrium: Efficient Triplet Sensitizers for Low-Power Upconversion

被引:210
作者
Ji, Shaomin [1 ]
Wu, Wanhua [1 ]
Wu, Wenting [1 ]
Guo, Huimin [1 ]
Zhao, Jianzhang [1 ]
机构
[1] Dalian Univ Technol, Sch Chem Engn, State Key Lab Fine Chem, Dalian 116024, Peoples R China
关键词
photochemistry; pyrene; ruthenium; triplet excited states; upconversion; PHOTOPHYSICAL BEHAVIOR; VISIBLE-LIGHT; CHROMOPHORE; GENERATION; MLCT;
D O I
10.1002/anie.201006192
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Up, up, and away! The long-lived 3IL excited states of Ru II polyimine complexes were found to be more efficient in sensitizing upconversion based on triplet-triplet annihilation (TTA) and energy transfer (TTET) than the shorter-lived 3MLCT excited states (see picture). Upconversion occurs with an anti-Stokes shift of up to 0.77a eV. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码:1626 / 1629
页数:4
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