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.
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页码：925 / 930
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