ELECTRON-TRANSFER AT TETRAHEDRAL COBALT(II) .5. KINETICS OF PERMANGANATE ION REDUCTION

被引：5

作者：

AYOKO, GA

ARABEL, J

机构：

[1] Department of Chemistry, University of Papua New Guinea, Box 320, University Post Office

来源：

TRANSITION METAL CHEMISTRY | 1994年 / 19卷 / 02期

关键词：

D O I：

10.1007/BF00161892

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The kinetics and mechanism of the reduction of MnO4-by CoW12O4O6- in aqueous HClO4 were studied. The reaction follows the rate law: -d[MnO4-]/dt = 5 K(a)k[H+][MnO4-][CoW12O4O6-] with K(a) = 2.99 x 10(-3) mol-1 dm3 and k = 2.00 +/- 0.02 x 10(3) dm6 mol-2 s-1 at 25-degrees-C. Close agreement between k(obs) and k(calc) on the basis of Marcus theory suggest an outersphere mechanism operates. Alkali metal ions catalyse the reaction in the order K+ > Na+ > Li+ and this result has been rationalized.

引用

页码：212 / 214

页数：3

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