期刊
INORGANIC CHEMISTRY
卷 52, 期 19, 页码 10897-10903出版社
AMER CHEMICAL SOC
DOI: 10.1021/ic400890f
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资金
- Department of Science and Technology, India [SR/S1/IC-38/2010]
- CSIR India
Copper(II) complex, 1, with the histidine-derived ligand L (L = methyl 2-(2-hydroxybenzylamino)-3-(1H-imidazol-5-yl)propanoate) has been synthesized and characterized. Single-crystal structure determination reveals a diphenolato-bridged dicopper(II) core in 1. Addition of (NO)-N-center dot to an acetonitrile solution of 1 affords the corresponding mononuclear copper(II)-nitrosyl complex, 2. In the presence of H2O2, 2 results in formation of the corresponding copper(I)-peroxynitrite. Formation of peroxynitrite (-OONO) intermediate is evident from its characteristic phenol ring nitration reaction which resembles the tyrosine nitration in biological systems. Further, isolation. of nitrate (NO3-) as the decomposition product from 2 at room temperature also supports the involvement of -OONO intermediate.
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