Synthesis and structural characterization of Ni(II) complexes containing a heterocyclic NO donor ligand

被引：6

作者：

Kumar, P. M. Vimal ^{[1
]}

Radhakrishnan, P. K. ^{[1
]}

机构：

[1] Mahatma Gandhi Univ, Sch Chem Sci, Kottayam 686560, Kerala, India

来源：

POLYHEDRON | 2011年 / 30卷 / 17期

关键词：

Ni(II) complexes; Schiff base; Spectra; Magnetism; Crystal structure; CRYSTAL-STRUCTURE; CU-II; NICKEL(II);

D O I：

10.1016/j.poly.2011.08.013

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Five novel nickel(II) complexes have been successfully synthesized with a heterocyclic ligand, Opdac, [Ni(Opdac)(2)]Cl-2 (1), [Ni(Opdac)(2)(CH3OH)(2)]Br-2(CH3OH)(2) (2), [Ni(Opdac)(2)]I-2 (3), [Ni(Opdac)(2)NO3]NO3 (4) and [Ni(Opdac)(2)ClO4]ClO4 (5) where Opdac = 4-(1-H-1,3-benzimidazole-2-yl)-1,5-dimethyl-2-phenyl-1-2-dihydro-3-H-pyrazol-3-one. All the complexes were characterized by elemental analysis, molar conductivity, CHN analysis, magnetic susceptibility measurements, spectroscopic studies and TG/DTA methods. In all the complexes, Opdac acts as a bidentate ligand coordinating to Ni(II) ion via the benzimidazole imine nitrogen and the pyrazolone oxygen atoms. The complexes 1 and 3 have a tetrahedral geometry while 2, 4 and 5 have an octahedral geometry around the Ni(II) center. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：2849 / 2855

页数：7

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