在受限几何条件下产生的电子转移反应重组能的评估方法。

Method for the evaluation of the reorganization energy of electron transfer reactions produced under restricted geometry conditions.

作者信息

López-Cornejo P, Hernandez M, Pérez-Tejeda P, Pérez F, Prado-Gotor R, Sanchez F

机构信息

Department of Physical Chemistry, Faculty of Chemistry, University of Sevilla, C/Profesor García Gonzalez S/N, 41012 Sevilla, Spain.

出版信息

J Phys Chem B. 2005 Feb 10;109(5):1703-7. doi: 10.1021/jp046503z.

DOI:10.1021/jp046503z

PMID:16851147

Abstract

The kinetics of the electron transfer reactions between S(2)O(8)(2-) and the complexes (Ru(NH(3))(5)L)(2+) (L = pyridine, pyrazine, and 4-cyanopyridine) have been studied in micellar (SDS) solutions. A method for the evaluation of the reorganization energy of these reactions, based on the comparison of their rate constants, is proposed. From the results obtained, we concluded that the observed rate constants go through a minimum for the surfactant concentration in which the reorganization energy goes through a maximum. The method can be applied to any kind of restricted geometry conditions.

摘要

研究了在胶束（SDS）溶液中S₂O₈²⁻与配合物（Ru(NH₃)₅L）²⁺（L = 吡啶、吡嗪和4-氰基吡啶）之间电子转移反应的动力学。提出了一种基于反应速率常数比较来评估这些反应重组能的方法。从所得结果得出，我们得出观察到的速率常数在重组能达到最大值的表面活性剂浓度处出现最小值。该方法可应用于任何类型的受限几何条件。