ELECTROCHEMICAL AND SPECTROELECTROCHEMICAL CHARACTERIZATION OF INTERMOLECULAR NITROSYL TRANSFER BETWEEN IRON AND COBALT PORPHYRINS

被引：25

作者：

MU, XH ^{[1
]}

KADISH, KM ^{[1
]}

机构：

[1] UNIV HOUSTON,DEPT CHEM,HOUSTON,TX 77204

来源：

INORGANIC CHEMISTRY | 1990年 / 29卷 / 05期

关键词：

D O I：

10.1021/ic00330a024

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The transfer of a nitrosyl ligand between neutral and oxidized iron and cobalt metalloporphyrins in dichloromethane solutions was investigated by electrochemistry and FTIR or ESR spectroelectrochemistry. The transfer of NO from (P)Co(NO) to (P)Fe, from [(P)Co(NO)]+ to (P)FeClO4, and from [(P)Fe(NO)]+ to (P)Co was demonstrated for complexes where P = the dianion of tetraphenylporphyrin (TPP), meso-tetrakis(2,4,6-trimethylphenyl)porphyrin (TMP), or octaethylporphyrin (OEP). The driving force in these reactions is related to both the nature and oxidation state of the central metal in (P)M(NO) or [(P)M(NO)]+, where M = Fe or Co, and follows the order (P)Fe(NO) > (P)Co(NO) > [(P)Fe(NO)]+ > [(P)Co(NO)]+. © 1990, American Chemical Society. All rights reserved.

引用

页码：1031 / 1036

页数：6

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[1] IRON PORPHYRIN-BASED ELECTROCATALYTIC REDUCTION OF NITRITE TO AMMONIA [J].