Synthesis, Spectroscopic, and Electrochemical Studies on Some New Copper(II) Complexes Containing 2-[(Z)-Phenyl (Pyridine-2-yl) Methylidene] AminoBenzenethiol and Monodentate Ligands

International Journal of Inorganic Chemistry Pub Date : 2014-06-19 DOI:10.1155/2014/618943

S. Rawat, M. Choudhary

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引用次数: 3

Abstract

Five new mononuclear copper(II) complexes, namely, [Cu(L)(ImH)]·ClO41; [Cu(L)(Me-ImH)]·ClO42; [Cu(L)(Et-ImH)]·ClO43; [Cu(L)(2-benz-ImH)]·ClO44; [Cu(L)(benz-ImH)]·ClO45, where HL = 2-[(Z)-phenyl (pyridine-2-yl) methylidene] amino benzenethiol; ImH = Imidazole; Me-ImH = Methy-limidazole; Et-ImH = Ethyl-imidazole; 2-benz-ImH = 2-methyl-benzimidazole; benz-ImH = benz-imidazole, have been synthesized and characterized by various physicochemical and spectroscopic techniques. Magnetic moments, electronic spectra, and EPR spectra of the complexes suggested a square planar geometry around Cu(II) ion. The synthesized HL ligand behaves as monobasic tridentate Schiff base bound with the metal ion in a tridentate manner, with N2S donor sites of the pyridine-N, azomethine-N, and benzenethiol-S atoms. The redox behaviour of the copper complexes has been studied by cyclic voltammetry. Superoxide dismutase activity of these complexes has been revealed to catalyse the dismutation of superoxide () and IC50 values were evaluated and discussed.

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含2-[(Z)-苯基(吡啶-2-基)亚甲基]氨基苯乙醇和单齿配体的新型铜(II)配合物的合成、光谱和电化学研究

五个新的单核铜(II)配合物，即[Cu(L)(ImH)]·ClO41;(铜(L) (Me-ImH)]·ClO42;(铜(L) (Et-ImH)]·ClO43;(铜(L) (2-benz-ImH)]·ClO44;[Cu(L)(苯- imh)]·ClO45，其中HL = 2-[(Z)-苯基(吡啶-2-基)亚甲基]氨基苯硫醇;ImH =咪唑;甲基咪唑;Et-ImH =乙基咪唑;2-苯- imh = 2-甲基-苯并咪唑;苯- imh =苯-咪唑，已被合成并通过各种物理化学和光谱技术进行了表征。配合物的磁矩、电子能谱和EPR谱表明，配合物在Cu(II)离子周围呈方形平面几何结构。合成的HL配体表现为单碱式三齿希夫碱与金属离子以三齿方式结合，吡啶- n、偶氮胺- n和苯乙醇- s原子的N2S给体位。用循环伏安法研究了铜配合物的氧化还原行为。这些复合物的超氧化物歧化酶活性已被揭示为催化超氧化物()的歧化酶，并对IC50值进行了评估和讨论。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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International Journal of Inorganic Chemistry

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