Temperature-dependent Emission of Copper(I) Phenanthroline Complexes with Bulky Substituents: Estimation of an Energy Gap between the Singlet and Triplet MLCT States

被引：28

作者：

Asano, Motoko S. ^{[1
]}

Tomiduka, Kazuhito ^{[1
]}

Sekizawa, Keita ^{[1
]}

Yamashita, Ken-ichi ^{[1
]}

Sugiura, Ken-ichi ^{[1
]}

机构：

[1] Tokyo Metropolitan Univ, Dept Chem, Tokyo 1920397, Japan

来源：

CHEMISTRY LETTERS | 2010年 / 39卷 / 04期

关键词：

PHOTOPHYSICAL PROPERTIES; EXCITED-STATES;

D O I：

10.1246/cl.2010.376

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Temperature dependence of emission from bis(2,9-di-tert-butyl-1,10-phenanthroline)copper(I) ([Cu(dtbp)(2)](+)) as well as several other copper(I) bis(phenanthroline) complexes was measured between 190 and 300 K. An analysis based on a Boltzmann distribution model gives an energy gap between (MLCT)-M-1 and (MLCT)-M-3 excited states as 790 cm(-1) for [Cu(dtbp)(2)]SbF6. The contribution of the delayed fluorescence largely depends on the ligand substituents.

引用

页码：376 / 378

页数：3

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