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
收藏
页码：10932 / 10938
页数：7
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