Three new 3D coordination polymers constructed by biphenyl-2,2′,4,4′-tetracarboxylic acid: Effect of metal ions and the second ligands

被引:34
作者
Cheng, Lin
Gou, Shaohua [1 ]
Wang, Jianquan
机构
[1] Southeast Univ, Pharmaceut Res Ctr, Nanjing 211189, Peoples R China
关键词
Coordination polymer; (4(2).8(4)) Topology; (4(2).6(3).8) Topology; (4(16).6(5)) Topology; The second ligand; ORGANIC FRAMEWORKS; MOLECULAR-COMPLEXES; CRYSTAL-STRUCTURES; WATER CLUSTER; HYDROGEN; ARCHITECTURES; LUMINESCENCE; ADSORPTION; NETWORKS; COBALT;
D O I
10.1016/j.molstruc.2011.02.018
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
Three new coordination polymers with different architectures, {[Zn-2(bta)(2,2'-bipy)(2)]center dot H2O}(n) (1), {[Cd-2(bta)(2,2'-bipy)(2)(H2O)]center dot H2O}(n) (2) and [Cd-3(bta)(Hbiim)(2)(H(2)biim)](n) (3), where H(4)bta = biphenyl-2,2',4,4'-tetracarboxylic acid, 2,2'-bipy = 2,2'-bipyridine and H(2)biim = 1H,1'H-2,2'-biimidazole, have been obtained by the reactions of metal nitrates, H(4)bta, the second ligands and H2O under similar hydrothermal conditions. All the polymers are three-dimensional (3D) constructions with different networks, in which 1, 2 and 3 exhibit a (4(2).8(4))-pts, (4(2).6(3).8) sra and (4(16).6(5)) topology, respectively. The bta ligands in 1-3 adopt eta(6),mu(6)-hexadentate, eta(8),mu(5)-tetradentate and eta(10),mu(7)-decadaldentate coordination modes, respectively, and the corresponding angles of two benzene rings in the ligand of each compound are 45.96 degrees, 54.93 degrees and 52.50 degrees, respectively. This study indicates that the natures of metal ions and the second ligands are crucial factors for self-assemble of coordination polymers. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.
引用
收藏
页码:149 / 157
页数:9
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