Crystal Structure,Thermal Behavior and Magnetic Properties of a New Copper(Ⅱ) Complex Based on Biphenyl-2,5,2',5'-tetracarboxylic Acid

被引:0
|
作者
田丹 [1 ]
周艳红 [1 ]
关丽 [1 ]
朱晓飞 [1 ]
庞宇 [1 ]
张宏 [1 ]
机构
[1] Department of Chemistry,Key Laboratory of Polyoxometalate Science of Ministry of Education,Northeast Normal University
关键词
copper(Ⅱ) complex; biphenyl-2; 5; 5’-tetracarboxylic acid; antiferromagnetic interactions;
D O I
10.14102/j.cnki.0254-5861.2011.01.021
中图分类号
O627.21 [镁有机化合物];
学科分类号
070303 ; 081704 ;
摘要
A new coordination polymer,[Cu2(bptc)(2,2’-bpy) 2(H2O)]·H2O(2,2’-bpy = 2,2’-bipyridine,H4bptc = biphenyl-2,5,2’,5’-tetracarboxylic acid) ,has been synthesized under hydrother-mal conditions. The structure was characterized by single-crystal X-ray diffraction,elemental analysis,IR spectra and thermogravimetric analysis. It crystallizes in triclinic,space group P1 with a = 10.6447(12) ,b = 11.0191(12),c = 16.1253(18) ,α = 79.538(2),β = 88.0720(10) ,γ = 61.6650(10) °,V = 1634.1(3) 3,C36H26Cu2N4O10,Mr = 801.69,Z = 2,Dc = 1.629 g/cm3,μ(MoKα) = 1.370 mm-1,F(000) = 816.0,R = 0.0418 and wR = 0.1135 for 4416 observed reflections with I > 2σ(I) . X-ray analysis shows that the title complex exhibits 1D wavelike [Cu2(bptc) ]n chains with two types of diamond-shaped pores. These 1D chains are linked into a 3D supramolecular structure via O-H···O,C-H···O interactions and weak π···π stacking interactions. There exist H-bonded helices in a right-and left-handed sequence by turns in a 2D layer. Moreover,thermal stability has been studied and magnetic measurements show antiferromagnetic interactions for this complex.
引用
收藏
页码:120 / 126
页数:7
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