Reaction of a Nitrosyl Complex of Cobalt Porphyrin with Hydrogen Peroxide: Putative Formation of Peroxynitrite Intermediate

被引：10
|
作者：
Saha, Soumen [1 ]
Gogoi, Kuldeep [1 ]
Mondal, Baishakhi [1 ]
Ghosh, Somnath [1 ]
Deka, Hemanta [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 / 14期
关键词：
NITRIC-OXIDE DIOXYGENASE; COPPER(II)-NITROSYL COMPLEX; CATION RADICALS; CHEMISTRY; COPPER; SUPEROXIDE; REDOX; HEME; IRON; ISOBACTERIOCHLORINS;
D O I：
10.1021/acs.inorgchem.7b00491
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The cobalt porphyrin complex [(Cl4TPP)Co], 1, {Cl4TPP = 5,10,15,20-tetrakis(4'-chlorophenyl)porphyrinate dianion} in dichloromethane solution was subjected to react with nitric oxide (NO) gas and resulted in the formation of the corresponding nitrosyl complex [(Cl4TPP)Co(NO)], 2, having {CoNO}(8) description. It was characterized by spectroscopic studies and single-crystal X-ray structure determination. It did not react with dioxygen. However, in CH2Cl2/CH3CN solution, it reacted with H2O2 to result in the Co-nitrito complex [(Cl4TPP)Co(NO2)], 3, with the simultaneous release of O-2. It induced ring nitration to the added phenol in an appreciable yield. The reaction presumably proceeds through the formation of corresponding Co-peroxynitrite intermediate.
引用
收藏
页码：7781 / 7787
页数：7
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