Synthesis,Crystal Structure and Magnetic Properties of a Co(Ⅱ) Complex Containing 2′-(l′-Methyl)benzimidazolyl-substituted Nitronyl Nitroxide

被引：0

作者：

蒋凯 ^{[1
]}

孙小媛 ^{[1
,2
]}

王利亚 ^{[1
,2
]}

王玉芳 ^{[2
]}

机构：

[1] College of Chemistry and Environmental Science,Henan Normal University

[2] College of Chemistry and Chemical Engineering,Luoyang Normal University

来源：

结构化学 | 2011年 / 30卷 / 04期

关键词：

crystal structure; nitronyl nitroxide radical; Co(II) complex; magnetic properties;

D O I：

10.14102/j.cnki.0254-5861.2011.04.011

中图分类号：

O641.4 [络合物化学（配位化学）];

学科分类号：

070304 ; 081704 ;

摘要：

A new complex [Co(NIT-1′-MeBzIm)2Cl2](NIT-1′-MeBzIm = 2-{2′-[(l′-methyl)-benzimidazolyl]}-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide) has been prepared and structurally characterized by X-ray diffraction method.The complex crystallizes in the monoclinic system,space group C2/c,Z = 4.Crystal data:C30H38Cl2CoN8O4,Mr = 704.51,a = 17.074(3),b = 21.350(3),c = 11.6962(19),β = 108.879(2)°,V = 4034.3(11)3,Dc = 1.160 g/cm3,μ(MoKα) = 0.597 mm-1,F(000) = 1468,R = 0.0422 and wR = 0.1141 for 2577 observed reflections with I > 2σ(I).X-ray analysis reveals that the Co(Ⅱ) ion is six-coordinated with a distorted octahedral geometry.Temperature dependence of susceptibility measurements shows the existence of antiferromagnetic interactions between the Co(Ⅱ) ion and the radicals(J =-52.88 cm-1).

引用

页码：519 / 523

页数：5