Theoretical investigation of the directional electron transfer in 4-aminonaphthalimide compounds

被引:64
作者
Gao, YQ [1 ]
Marcus, RA [1 ]
机构
[1] CALTECH, Arthur Amos Noyes Lab Chem Phys, Pasadena, CA 91125 USA
关键词
D O I
10.1021/jp011980s
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
Photoinduced electron-transfer reactions in small supramolecular systems, such as the 4-amwinonaphthalimide compounds, are interesting in that there are two alternative directions for the electron transfer to occur. Nevertheless, the electron transfer occurs only along one path, Lis deduced from pH-dependent fluorescence quenching studies of selected compounds. The role of the electronic coupling matrix element and the effect of the charges accompanying protonation arc considered so as to explain the directionality of the electron transfer and other results. A related mechanism is suggested for interpreting the behavior of similar molecules, which serve as fluorescent sensors of metal ions.
引用
收藏
页码:1956 / 1960
页数:5
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