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双核金属配合物对于生物化学和磁化学都是非常重要的。在本文中,1,2,3-三氮唑-4,5-二羧酸(H3tda)配体和硝酸镍在常温常压下反应得到了1个三氮唑桥联的双核镍配合物[Ni2(Htda)2(H2O)6]·4H2O(1),并通过元素分析、红外光谱、X-射线单晶衍射、热重分析以及超导量子干涉仪(SQUID)对其晶体结构和磁、热性质进行了表征。晶体数据表明该配合物属三斜晶系,空间群为P1。在配合物1中,2个1,2,3-三氮唑-4,5-二羧酸配体利用2个相邻的氮原子桥联2个金属镍离子形成一个双桥的双核镍配合物。这些双核镍单元又通过体系中存在的大量的氢键相互作用形成了三维超分子骨架。磁性分析显示双核镍单元内镍镍之间存在反铁磁相互作用。
Binuclear metal complexes are very important for both biochemistry and magnetochemistry. In this paper, 1,2,3-triazole-4, 5-dicarboxylic acid (H3tda) ligand and nickel nitrate at room temperature under normal pressure obtained a triazole bridged binuclear nickel complexes [ Ni2 (Htda) 2 (H2O) 6] .4H2O (1) was prepared and its crystal structure and magnetic properties were characterized by elemental analysis, IR, XRD, TG and SQUID. The thermal properties were characterized. Crystal data show that the complex is triclinic, the space group P1. In the complex 1, two 1,2,3-triazole-4,5-dicarboxylic acid ligands bridged two metal nickel ions by two adjacent nitrogen atoms to form a dual-bridge dinuclear nickel complex Things. These binuclear nickel units, in turn, form a three-dimensional supramolecular framework by a large number of hydrogen-bonding interactions in the system. Magnetic analysis shows that there is an antiferromagnetic interaction between nickel and nickel in the dinuclear nickel unit.