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首页> 中文期刊> 《无机化学学报》 >基于三联苯-2,5,2′,5′-四羧酸的两个配位聚合物(N(Ⅱ),Zn(Ⅱ))的合成、结构和性质

基于三联苯-2,5,2′,5′-四羧酸的两个配位聚合物(N(Ⅱ),Zn(Ⅱ))的合成、结构和性质

         
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Solvothermal reactions of aromatic terphenyl-2,5,2′,5′-tetracarboxylic acid(H4qptc)ligand and transitional metal cations of M Ⅱ(M=Ni,Zn)in the presence of 4,4′-bipyridine(4,4′-bpy)afford two new coordination polymers(CPs),namely,{[Ni(H2qptc)(4,4′-bpy)(H2O)2]·2(H2O)}n(1)and[Zn2(H2O)2(qptc)(4,4′-bpy)]n(2).Their structures have been determined by single-crystal X-ray diffraction analyses and further characterized by elemental analyses,TGA,and magnetism.In 1,the H2qptc2-acts as a Z-shaped ligand linking the Ni Ⅱ centers to a 1D zigzag polymeric[Ni(H2qptc)]n chain,based on which a unique 3D 4-connected framework with distorted (65·8)-cds topology is formed.For 2,the qptc4-acts as a H-shaped ligand linking the ZnⅡ centers together to form a 2D polymeric[Zn(qptc)]n layer,which is further connected by 4,4′-bpy,thus generating a 3D(3,4)-connected network with the Schl(a)fli symbol of(42·6)2(43·62·8)(45·64·8)2.CCDC:864143,1,864144,2.%采用水热法合成了两个新颖的配合物{[Ni(H2qptc)(4,4′-bpy)(H2O)2]·2(H2O)｝n(1)和[Zn2(H2O)2(qptc)(4,4′-bpy)]n(2)(H4qptc:三联苯-2,5,2′,5′-四羧酸,4,4′-bpy:4,4′-联吡啶),并对其进行了元素分析、热重、红外光谱和、磁性和X-射线单晶衍射测定.化合物1和2都是三维结构,分别显示(65.8)-cds、(42·6)2(43.62.8)(45.64.8)2.拓扑结构.

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