基于4-氯-1,2-苯二甲酸配体的含氯氢键的Cu(Ⅱ)三维超分子配位聚合物的合成、晶体结构和波谱性质

Synthesis,Crystal Structure and Spectra Properties of A New Cu(Ⅱ) 3D Supramolecular Coordination Polymer with C-H…Cl Hydrogen Bonds Based on 4-chloro-1,2-phthalic Acid Ligand

利用水热方法得到了一种含有氯氢键的铜配位聚合物{[CuL(bpy)(H2O)3]·2.5H2O}n(1)的单晶(H2L=4-氯-1,2-苯二甲酸,bpy=4,4-联吡啶),并利用元素分析、IR谱、Uv/vis谱以及X-射线衍射分析的方法对其进行了结构表征。结构分析表明:该化合物为三斜晶系,空间群为Pī。晶体中,bpy配体将Cu(II)离子桥联成了"之"字型链状结构(-Cu-bpy-Cu-);在平行于bc平面的面内,这些链又被弱的链间O-H…O氢键和C-H…Cl氯氢键连接成了二维鱼骨状骨架,而最终的三维超分子结构是通过层间O-H…O氢键来完成的。

A single crystal of copper coordination polymer with C-H…Cl hydrogen bond { [CuL（bpy）（H2O）3]·2.5H2O}n（1）（H2 L = 4-chloro-1,2-phthalic acid,bpy = 4,4-Bipyridine） was synthesized by hydro（solvo） thermally method and characterized by elemental analysis,IR spectra,UV vis absorption spectra and single crystal X-ray diffraction. It crystallizes in the triclinic system,space group Pī. In the crystal,the Cu（Ⅱ） ions are bridged together by the bpy ligands to form-Cu-bpy-Cu- zigzag chains,which are further linked by the interchain O-H … O and C-H … Cl hydrogen bonds to generate a twodimensional fish-network architecture in the bc plane; these 2D layers are extended to form a threedimensional supramolecular framework by interlayers O-H…O hydrogen bonds.