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采用3,5-二(4-吡啶)1,2,4-三唑(Hbpt)为配体与钴盐反应,在水热法条件下成功合成了3个配合物,分别是:[Co(Hbpt)2(HCOO)2(H2O)2]n·4nH2O(1),[Co(Hbpt)2(HCOO)2(H2O)2]n(2)和[Co(bpt)2(H2O)4]n·2nH2O(3),并通过X-射线单晶衍射和红外对它们进行了表征。配合物1和2均为三斜晶系,P1空间群,配合物3为单斜晶系,P21/c空间群。中心金属Co(Ⅱ)都是六配位,每个Co(Ⅱ)分别与2个Hbpt配体桥联而形成零维的结构单元,这些结构单元通过氢键和π-π堆积弱作用进一步连接而形成三维超分子网络结构。此外,还对配合物1和3的热稳定性做了分析。
Three complexes were successfully synthesized by hydrothermal method using 3,5-bis (4-pyridyl) 1,2,4-triazole (Hbpt) as ligand and cobalt salt. They were [Co (Hbpt) 2 (HCOO) 2 (H2O) 2] n.4nH2O (1) [Co (Hbpt) 2 (HCOO) 2 (H2O) 2] n · 2nH2O (3) and characterized by X-ray single crystal diffraction and infrared. Complex 1 and 2 are triclinic, P1 space group, complex 3 is monoclinic, P21 / c space group. The central metal Co (Ⅱ) is hexacoordinated. Each Co (Ⅱ) is bridged with two Hbpt ligands to form zero-dimensional structural units, which are further connected by weak interactions of hydrogen bonds and π-π stacking The formation of three-dimensional supramolecular network structure. In addition, the thermal stability of complexes 1 and 3 were also analyzed.