Metal-radical complexes [M(NITm-Py)2(N3)2(DMSO)2] [M = Cu(II), Ni(II), Co(II)]:: Syntheses, crystal structures and magnetic properties

被引：15

作者：

Xu, Yun-He ^{[1
]}

Qu, Xiao-Ni ^{[1
]}

Song, Hai-Bin ^{[1
]}

Li, Li-Cun ^{[1
]}

Jiang, Zong-Hui ^{[1
]}

Liao, Dai-Zheng ^{[1
]}

机构：

[1] Nankai Univ, Dept Chem, Tianjin 300071, Peoples R China

来源：

POLYHEDRON | 2007年 / 26卷 / 03期

基金：

中国国家自然科学基金;

关键词：

nitronyl nitroxide radical; crystal structure; magnetic properties; complexes;

D O I：

10.1016/j.poly.2006.08.036

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Three new metal-radical complexes of the formula [M(NITm-PY)(2)(N-3)(2)(DMSO)(2)] [M = Cu(II) 1, Ni(II) 2, Co(II) 3; NITmPy = 2-(3'-pyridyl)-4,4,5,5 -tetramethylimidazoline-1-oxyl-3-oxide] were synthesized and characterized structurally as well as magnetically. Three complexes are three-spin complexes in which two NITmPy radical ligands are coordinated to the metal ion through the nitrogen atoms of the pyridyl rings. The magnetic behaviors of the three complexes are investigated. Complexes 1 and 2 show ferromagnetic interactions while antiferromagnetic coupling is predominant for complex 3. The magnetic properties are analyzed in connection with their structures and the magnetic exchange mechanism is discussed. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：741 / 747

页数：7

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