Electron transfer kinetics at perylene fluorescence quenching with nitrocompounds

被引：0

作者：

Kapinus, E.I. ^{[1
]}

Kucherova, I.Yu. ^{[1
]}

Dilung, I.I. ^{[1
]}

机构：

[1] Acad of Sciences of Ukraine, Kiev, Ukraine

来源：

Soviet journal of chemical physics | 1992年 / 10卷 / 05期

关键词：

Dinitrobenzenes - Electron transfer - Electron transfer probability - Fluorescence quenching - Linear Stern Volmer relationship - Mutual diffusion coefficient - Perylene fluorescence - Trinitrofluorescence;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Quenching of perylene fluorescence by 2,4,7-trinitro-9-fluorescence and dinitrobenzenes occurs via electron transfer. The quenching radii Rq in these systems increase with decreasing coefficient of mutual diffusion of the reactions. Close Rq values are obtained using various calculation method based on the data on quenching of fluorescence excited under stationary and pulsed conditions. The distant character of electron transfer at the perylene fluorescence quenching by m-dinitrobenzene leads to positive deviations from the linear Stern-Volmer relationship. The distant electron transfer in the system studied is shown to be due to a relatively weak dependence of the electron transfer probability on the distance, which can be accounted for by participation of mediator states of the medium.

引用

页码：933 / 944