SOLVENT EFFECTS ON PHOTOINDUCED ELECTRON-TRANSFER REACTIONS

被引：91

作者：

NIWA, T ^{[1
]}

KIKUCHI, K ^{[1
]}

MATSUSITA, N ^{[1
]}

HAYASHI, M ^{[1
]}

KATAGIRI, T ^{[1
]}

TAKAHASHI, Y ^{[1
]}

MIYASHI, T ^{[1
]}

机构：

[1] TOHOKU UNIV,FAC SCI,DEPT CHEM,AOBA KU,SENDAI 980,JAPAN

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1993年 / 97卷 / 46期

关键词：

D O I：

10.1021/j100148a019

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：

Dependence of the fluorescence-quenching rate constant k(q), effective quenching distance r(q), and free radical yield Phi(R) on the free enthalpy change Delta G(f) of full electron transfer has been studied in dichloromethane by using anthracenecarbonitriles as electron-accepting fluorescers and amino- and methoxybenzenes as electron-donating quenchers. On the basis of the present data in dichloromethane and the previous data in acetonitrile, the solvent effects on the electron-transfer fluorescence-quenching mechanism and on the back electron-transfer reaction within the geminate radical ion pairs are elucidated.

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页码：11960 / 11964

页数：5

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