两种具有螺旋结构的双核铜有机-无机配位聚合物的合成及表征

在水热和溶剂热条件下, 有机多齿羧酸4,4'-三苯胺二甲酸(H₂L)及含铜化合物分别与2,2'-联吡啶(bpy)和1,4-二(吡啶-4-甲氧基)苯(bpmb)反应, 合成了2种新型的含铜配位聚合物Cu₂L(bpy)](1)和CuL(bpmb)_0.5]·DMF(2). 通过X射线单晶衍射、 红外光谱、 元素分析、 热重和粉末X射线衍射分析等对其结构进行了表征. 结果表明, 化合物1属正交晶系, Pnma空间群, 其骨架为二维层状结构; 化合物2属单斜晶系, P2₁/c空间群, 具有{4⁴·6¹⁰·8}拓扑结构的三维网络.

Synthesis and Characterization of Two Novel Cu(Ⅱ) Coordination Polymers with Helical Crystal Structure†

Multidenate 4,4'-(phenylazanediyl)dibenzoic acid(H₂L) ligand and copper(Ⅱ) ions react with 2,2-bipyridine(bpy) under the hydrothermal conditions or 1,4-bis(pyridin-4-ylmethoxy)benzene(bpmb) under the solvothermal reactions. Two new coordination polymers, namely Cu₂L(bpy)](1) and CuL(bpmb)_0.5]·DMF(2), were obtained and characterized by single-crystal X-ray diffraction(XRD), Fourier transform infrared spectrosopy(FTIR) spectroscopy, elemental analyses, thermal analysis and power X-ray diffraction(PXRD). The results showed that the compound 1 displays orthorhombic crystal structure and exhibits two-dimensional(2D) layer architectures built with Pnma space group, and compound 2 crystallizes in the monoclinic space group P2₁/c and gives a 3D framework with {4⁴·6¹⁰·8} topology structure.