Synthesis and cation-mediated electron transfer in intramolecular fluorescence quenching of donor-acceptor podands: Observation of Marcus inverted region in forward electron transfer reactions

被引：0

作者：

Jiang, Hua ^{[1
]}

Xu, Huijun ^{[1
]}

Ye, Jianping ^{[1
]}

机构：

[1] Institute of Photographic Chemistry, Bei-Sha-Tan, Beijing 100101, China

来源：

Journal of the Chemical Society. Perkin Transactions 2 | 2000年 / 05期

关键词：

Binding energy - Electrons - Fluorescence - Mass spectrometry - Nuclear magnetic resonance spectroscopy - Positive ions - Potassium - Quenching - Rate constants - Synthesis (chemical);

D O I：

10.1039/b000541j

中图分类号：

学科分类号：

摘要：

The synthesis of a series of donor-acceptor podands is described. The dependence of the rate constants of intramolecular photoinduced electron transfer on the exothermicity of the reaction was studied by stationary and time-resolved fluorescence spectroscopy. 1H NMR and computational studies suggest that the conformational change of the podands is restricted by K+ binding. As a result, the occurrence of highly exothermic photoinduced electron transfer reaction within the Marcus inverted region was observed.

引用

页码：925 / 930