含磷钼酸及2,2′-联吡啶-3,3′-二羧酸配体的铜配位聚合物的合成、晶体结构与电化学性质

Synthesis, Crystal Structure and Electrochemical Property of a Copper Coordination Polymer Containing Molybdophosphate and 2,2′-Bipyridine-3,3′-dicarboxylic Acid Ligands

在水热条件下合成了一个新的化合物{[Cu4(PMo12O40)(H2O)5(H2bpdc)(Hbpdc)(bpdc)2].6H2O}n(H2bpdc=2,2′-联吡啶-3,3′-二羧酸),并用元素分析、IR、TG和X-射线衍射等手段进行了表征。结果表明本化合物的晶体结构中,最小不对称单元包含1个[Cu4(H2O)5(H2bpdc)(Hbpdc)(bpdc)2]3+阳离子,1个[PMo12O40]3-阴离子和6个结晶水分子。Cu(Ⅱ)与相邻[PMo12O40]3-的桥氧原子配位,形成一维链状结构。电化学研究表明,化合物存在三步氧化还原过程。

Abstract： A complex {[Cu4（PMo12O40）（H2O）5（Hzbpdc）（Hbpdc）（bpdc）2]. 6H2O}, was synthesized under hydrotherrnal condition using H3PMo12040.xH2O, H2bpdc, CuSO4-5H2Oas raw materials and characterized by elemental analysis, IR,TG and single-crystal X-ray diffraction. The title compound consists of polyoxoanion [PMo12O40]3-, cations [Cu4 （H2O）5（H2bpdc） （Hbpdc）（bpdc）2]3＋ and lattice water molecules. The structure refinement indicates that the title compound forms a one-dimensional chain from the polyanions and [Cu4（H2O）5（H2bpdc）（Hbpdc）（bpdc）2]3＋ through O bridge. The cyclic voltammogram indicates that three couples redox waves are observed on the compound modified carbon paste electrode. CCDC： 748899.