X-ray crystal structure, spectral and magnetic properties of end-to-end di-μ-thiocyanatobis(imidazole)M(II) polymeric complexes (M = Co, Mn):: supramolecular network structure based on N-H•••S hydrogen bonding and π•••π stacking

被引：22

作者：

Jin, Yi ^{[1
]}

Che, Yun-Xia ^{[1
]}

Zheng, Ji-Min ^{[1
]}

机构：

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

来源：

JOURNAL OF COORDINATION CHEMISTRY | 2007年 / 60卷 / 19期

基金：

中国国家自然科学基金;

关键词：

thiocyanate; one-dimensional; supramolecular network; pi center dot center dot center dot pi stacking; antiferromagnet;

D O I：

10.1080/00958970701236735

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Two isomorphous one-dimensional chain complexes Co(NCS)(2)(Him)(2) (1) and Mn(NCS)(2)(Him)(2) (2) (Him = imidazole) have been prepared and characterized structurally. Both 1 and 2 crystallize in the monoclinic system, space group P2(1)/n, and the structures consist of one-dimensional polymeric chains in which metal ions are bridged by two thiocyanate groups bonding in end-to-end fashion. Both 1 and 2 exhibit two-dimensional sheet structures with N-H ... S hydrogen bonds and three-dimensional supramolecular network structure with pi ... pi stacking interactions. IR spectra indicate the presence of bridging thiocyanate groups in both 1 and 2, confirmed by their structures. The variable temperature magnetic susceptibility, measured in the 2-300K range, indicates weak antiferromagnetic exchange interactions in complex 2.

引用

页码：2067 / 2074

页数：8

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