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(英文) |
Syntheses, Crystal Structures and Properties of Two Mixed-Ligand Coordination Polymers (Ni(Ⅱ), Zn(Ⅱ)) Based on Terphenyl-2,5,2′,5′-tetracarboxylic Acid Ligand |
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摘要: 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。 |
关键词: 三联苯-2,5,2′,5′-四羧酸 4,4′-联吡啶 镍(Ⅱ)配合物 锌(Ⅱ)配合物 |
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Abstract: Solvothermal reactions of aromatic terphenyl-2,5,2′,5′-tetracarboxylic acid (H4qptc) ligand and transitional metal cations of MⅡ (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 NiⅡ 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?fli symbol of (42.6)2(43.62.8)(45.64.8)2. CCDC: 864143, 1, 864144, 2. |
Keywords: terphenyl-2,5,2′,5′-tracarboxylic acid 4,4′-bipyridine nickel(Ⅱ) complex zinc(Ⅱ) complex |
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张修堂,范黎明,孙 忠,张 伟,李大成,魏培海,李 斌,刘光增,窦建民.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(英文)[J].无机化学学报,2012,28(9):1809-1816. |
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