Temperature-dependent Emission of Copper(I) Phenanthroline Complexes with Bulky Substituents: Estimation of an Energy Gap between the Singlet and Triplet MLCT States
Temperature-dependent Emission of Copper(I) Phenanthroline Complexes with Bulky Substituents: Estimation of an Energy Gap between the Singlet and Triplet MLCT States
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DOI：
10.1246/cl.2010.376
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发表时间：
2010-04-05
影响因子：
1.6
通讯作者：
Sugiura, Ken-ichi
中科院分区：
文献类型：
--
作者：
Asano, Motoko S.;Tomiduka, Kazuhito;Sugiura, Ken-ichi
在190 ~ 300 K范围内测量了双（2，9-二叔丁基-1，10-菲咯啉）铜（I）（[Cu（dtbp）（2）]（+））以及其它几种铜（I）双（菲咯啉）配合物的发光温度依赖性。基于玻尔兹曼分布模型的分析给出[Cu（dtbp）（2）] SbF 6的（MLCT）-M-1和（MLCT）-M-3激发态之间的能隙为790 cm（-1）。延迟荧光的贡献很大程度上取决于配体的取代基。
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.