Structure and magnetic properties of a chiral dinuclear copper(II) complex assembled from a bpca- anion

被引：3

作者：

Lu, Zhengliang ^{[1
]}

Lu, Jing ^{[2
]}

Huang, Ximing ^{[1
]}

Liu, Cai-Ming ^{[3
]}

Fan, Chunhua ^{[1
]}

Nie, Yong ^{[1
]}

Sun, Guoxin ^{[1
]}

机构：

[1] Univ Jinan, Sch Chem & Chem Engn, Jinan 250022, Peoples R China

[2] Liaocheng Univ, Sch Chem & Chem Engn, Shandong Prov Key Lab Chem Energy Storage & Cell, Liaocheng 252059, Peoples R China

[3] Chinese Acad Sci, Key Lab Organ Solids, Inst Chem, Beijing Natl Lab Mol Sci,Ctr Mol Sci, Beijing 100190, Peoples R China

来源：

JOURNAL OF MOLECULAR STRUCTURE | 2014年 / 1064卷

基金：

中国国家自然科学基金;

关键词：

Self-assembly; Hbpca; Transition-metal Magnetism; Crystal structure; CRYSTAL-STRUCTURES; EXCHANGE INTERACTION; LIGAND; BINUCLEAR; TRINUCLEAR; ORBITALS; BRIDGES; CU(II); CORES;

D O I：

10.1016/j.molstruc.2014.02.006

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A novel chiral dinuclear Cu(II) cluster [Cu-2(bPca)(bpy)(H2O)(NO3)(3)] (1) (bpca(-) is the anion of bis (2-pyridylcarbonyl)amine and bpy is 2,2'-bipyridine), was synthesized and characterized. Single crystal X-ray diffraction analysis showed that the two Cu(II) ions in complex 1 are sitting in a distorted octahedral arrangement and bridged by the organic spacer bpca(-). Hydrogen bonding links neighboring dinuclear units into a three-dimensional framework. Inversion crystallographic symmetry gives dimers as either A or A isomers. Racemization of complex 1 was confirmed by circular dichroism (CD) spectros-copy. The temperature dependence of the magnetic susceptibility for complex 1 in the range 2-300 K indicates the presence of ferromagnetic Cu center dot center dot center dot Cu exchange. The data fitting gave the magnetic coupling constant J = 8.08 cm(-1). (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：76 / 80

页数：5

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