Electron-transfer reactions in [Ru(edta)(pyz)](-) (edta equals ethylenedinitrilotetraacetate, pyz equals pyrazine)

被引：23

作者：

Chatterjee, D

机构：

来源：

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS | 1996年 / 23期

关键词：

D O I：

10.1039/dt9960004389

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The kinetics of reduction of [Ru-III(edta)(pyz)](-)(edta = ethylenedinitrilotetraacetate, pyz = pyrazine) with L-ascorbic acid (H(2)A) and catechol (H(2)cat) was studied spectrophotometrically as a function of [H(2)A] or [H(2)cat], pH, ionic strength and temperature (25-45 degrees C). The reduction was found to be first order in both the complex and reductant concentrations. The pH dependence of the process(for H(2)A) was ascribed to the deprotonation of H(2)A. Kinetic data and activation parameters are interpreted in terms of a mechanism involving outer-sphere electron transfer.

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页码：4389 / 4392

页数：4

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