共 41 条
Synthesis, crystal structure, electrochemistry and antioxidative activity of copper(II), manganese(II) and nickel(II) complexes containing bis(N-ethylbenzimidazol-2-ylmethyl)aniline
被引:40
作者:
Wu, Huilu
[1
]
Peng, Hongping
[1
]
Zhang, Yanhui
[1
]
Wang, Fei
[1
]
Zhang, Han
[1
]
Wang, Cuiping
[1
]
Yang, Zaihui
[1
]
机构:
[1] Lanzhou Jiaotong Univ, Sch Chem & Biol Engn, Lanzhou 730070, Gansu, Peoples R China
基金:
中国国家自然科学基金;
关键词:
benzimidazole;
transition metal complexes;
crystal structure;
electrochemical property;
antioxidation;
DNA-BINDING PROPERTIES;
SUPEROXIDE-DISMUTASE ACTIVITY;
METAL-ORGANIC FRAMEWORKS;
COBALT(II) COMPLEXES;
DERIVATIVES;
CYTOTOXICITY;
DISCRETE;
EPR;
D O I:
10.1002/aoc.3313
中图分类号:
O69 [应用化学];
学科分类号:
081704 ;
摘要:
Bis(N-ethylbenzimidazol-2-ylmethyl)aniline (Etbba) and its transition metal complexes, [Cu(Etbba)(Cl)(2)]DMF (1), [Mn(Etbba)(Cl)(2)] (2) and [Ni(Etbba)(Cl)(2)] (3), have been synthesized and characterized on the basis of elemental analysis, molar conductivity, UV-visible, infrared and NMR spectroscopies and X-ray crystallography. The coordination environment of complex 1 can be described as distorted square-based pyramidal, while complexes 2 and 3 each have a distorted trigonal bipyramidal geometry. Cyclic voltammograms of complex 1 indicate an electrochemically quasi-reversible Cu2+/Cu+ couple. In addition, the antioxidant activities of the free ligand and its complexes were investigated using the superoxide and hydroxyl radical scavenging methods in vitro. Complexes 1, 2, 3 are found to possess potent hydroxyl radical scavenging activity and to be better than standard antioxidants like vitamin C and mannitol. Furthermore, complexes 1 and 2 exhibit significant superoxide radical activity. Copyright (c) 2015 John Wiley & Sons, Ltd.
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页码:443 / 449
页数:7
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