ESTIMATION OF THE OUTER-SPHERE CONTRIBUTION TO THE ACTIVATION PARAMETERS FOR HOMOGENEOUS ELECTRON-TRANSFER REACTIONS USING THE MEAN SPHERICAL APPROXIMATION

被引：61

作者：

FAWCETT, WR ^{[1
]}

BLUM, L ^{[1
]}

机构：

[1] UNIV PUERTO RICO,DEPT PHYS,RIO PIEDRAS,PR 00931

来源：

CHEMICAL PHYSICS LETTERS | 1991年 / 187卷 / 1-2期

关键词：

D O I：

10.1016/0009-2614(91)90503-2

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：

Estimation of the outer-sphere contribution to the Gibbs energy and enthalpy of activation for homogeneous electron transfer is described on the basis of the mean spherical approximation (MSA). It is shown that these quantities for spherical reactants are significantly smaller than those estimated by the Born continuum model. MSA estimates and experimental values of the activation enthalpy for the cobaltacene/cobaltacenium cation redox couple are found to agree with one another. The assumptions used in applying the MSA in the present paper and in earlier work are discussed.

引用

页码：173 / 179

页数：7

共 27 条

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