Reaction of a Co(III)-Peroxo Complex and NO: Formation of a Putative Peroxynitrite Intermediate

被引：15

作者：

Saha, Soumen ^{[1
]}

Ghosh, Somnath ^{[1
]}

Gogoi, Kuldeep ^{[1
]}

Deka, Hemanta ^{[1
]}

Mondal, Baishakhi ^{[1
]}

Mondal, Biplab ^{[1
]}

机构：

[1] Indian Inst Technol Guwahati, Dept Chem, North Guwahati 781039, Assam, India

来源：

INORGANIC CHEMISTRY | 2017年 / 56卷 / 18期

关键词：

HYDROXYL RADICAL FORMATION; COBALT NITROSYL COMPLEXES; NITRIC-OXIDE; O-O; COPPER(II)-NITROSYL COMPLEX; CHEMISTRY; DECOMPOSITION; DIOXYGENASE; OXIDATION; LIGAND;

D O I：

10.1021/acs.inorgchem.7b01110

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A Co(II) complex, [Co(L)(2)]Cl-2, 1 of the ligand L (L = bis(2-ethyl-4-methylimidazol-5-yl)methane) upon reaction with H2O2 in methanol solution at -40 degrees C resulted in the formation of the corresponding Co(III)-peroxo complex [Co(L)(2)(O-2)]+ (2). The addition of NO gas to the freshly generated solution of the complex 2 led to the formation of the Co(II)-nitrato complex 3 through the putative formation of a Co(II)-peroxynitrite intermediate, 2a. The intermediate 2a was found to mediate the nitration of the externally added phenol resembling the nitration of tyrosine in biological systems.

引用

页码：10932 / 10938

页数：7

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