Influence of Halogenated Benzene Solvents on the Photophysical Properties of Gallium Corroles: the External Heavy Atom Effect

被引：5

作者：

Zhan Xuan ^{[1
]}

Zhao Fang ^{[2
]}

Zhang Lei ^{[2
]}

Lue Biao-Biao ^{[3
]}

Peng Su-Hong ^{[1
]}

Ying Xiao ^{[3
]}

Wang Hui ^{[2
]}

Liu Hai-Yang ^{[1
,2
]}

机构：

[1] S China Univ Technol, Dept Chem, Guangzhou 510641, Guangdong, Peoples R China

[2] Sun Yat Sen Univ, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China

[3] S China Univ Technol, Dept Appl Phys, Guangzhou 510641, Guangdong, Peoples R China

来源：

ACTA PHYSICO-CHIMICA SINICA | 2016年 / 32卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Corrole; Gallium; Halogenated benzene solvent; External heavy atom effect; Photophysical property; ELECTRON-TRANSFER; TETRAPHENYLPORPHYRIN; FLUORESCENCE; DERIVATIVES;

D O I：

10.3866/PKU.WHXB201601043

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The photophysical properties of pentafluorophenyl-substituted gallium corroles in halogenated benzenes were investigated using ultraviolet-visible (UV-Vis), steady-state, time-resolved fluorescence, and femtosecond transient absorption spectroscopies. The results showed that the absorption maximum wavelength of the gallium corroles was mainly related to the dispersion force of the halogenated benzene solvents. The external heavy atom effect of halogenated benzenes may markedly lower the fluorescence quantum yield of gallium corrole complexes. Photoinduced electron transfer between the gallium corroles and halogenated benzene solvents was detected by femtosecond transient absorption spectroscopy. The experimental evidence showed that the heavy atom effect of the solvent might lower the charge recombination rate of charge-separated gallium corrole-solvent complexes.

引用

页码：771 / 779

页数：9

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