Electrochemical metalloporphyrin-catalyzed reduction of chlorite

被引：23

作者：

Collman, JP ^{[1
]}

Boulatov, R ^{[1
]}

Sunderland, CJ ^{[1
]}

Shiryaeva, IM ^{[1
]}

Berg, KE ^{[1
]}

机构：

[1] Stanford Univ, Dept Chem, Stanford, CA 94305 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2002年 / 124卷 / 36期

关键词：

D O I：

10.1021/ja027306l

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We measured the redox stoichiometry and rate constants for the electrochemical reduction of ClO2- at pH 7, catalyzed by a series of metalloporphyrins of Mn, Fe, and Co with different proximal and distal environments. A clean four-electron reduction was observed. The catalytic activity correlates well with that observed in reduction of H2O2. The axial imidazole and/or a redox-active distal metal (Cu or Co) increases the turnover frequency in several compounds. The metalloporphyrins were inert to ClOx- (x = 3,4) and IO3- but catalyzed facile two-electron reduction of IO4-; six-electron reduction of BrO3- was also observed. Copyright © 2002 American Chemical Society.

引用

页码：10670 / 10671

页数：2

共 19 条

[1] POLAROGRAPHIC KINETIC STUDY OF OXIDATION OF METAL COMPLEXES BY CHLORITE ION .I. OXIDATION OF FERROUS CITRATE TARTRATE AND ETHYLENEDIAMINETETRAACETATE AND CUPROUS AMMINE COMPLEXES [J].