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利用2,2′-联喹啉-4,4′-二羧酸钠(Na2bqdc),2,2-联吡啶与硫酸钴在溶剂热作用下合成了1个一维配位聚合物[Co(bqdc)(bipy)(H2O)]n(1)。通过元素分析、粉末衍射、红外、紫外光谱对配合物进行了表征,利用X射线单晶衍射仪测定了其晶体结构。中心CoⅡ离子分别与2个来自2,2-联喹啉-4,4-二羧酸钠配体的双齿羧基氧原子和1个来自配体的单齿羧基氧原子、辅助配体2,2-联吡啶上的2个N原子和1个水分子的氧原子配位,形成了1个稍微扭曲的八面体配位构型。紫外光谱实验表明,相对2,2′-联喹啉-4,4′-二羧酸钠配体,配合物的紫外光谱发生了少量的蓝移。对该配合物多晶样品的差热分析(TGA)表明该化合物在217℃后开始分解。
One-dimensional coordination polymer [Co (2-N, N-dimethylaminopyridine) with 2,2’-biquinoline-4,4’-dicarboxylate (Na2bqdc) bqdc) (bipy) (H2O)] n (1). The complex was characterized by elemental analysis, powder diffraction, infrared and ultraviolet spectroscopy. The crystal structure of the complex was characterized by X-ray single crystal diffraction. The central CoII ions bind to two bidentate carboxyl oxygen atoms from the ligands of sodium 2,2-biquinolin-4,4-dicarboxylate and one monodental carboxy oxygen atom derived from the ligand, the auxiliary ligand 2, The two N atoms on the 2-bipyridine coordinate with the oxygen atom of one water molecule, forming a slightly distorted octahedral coordination configuration. Ultraviolet spectroscopy experiments showed that there was a small amount of blue shift in the UV spectrum of the complex relative to the sodium 2,2’-biquinoline-4,4’-dicarboxylate ligand. Differential thermal analysis (TGA) of the polycrystalline sample of the complex showed that the compound started to decompose after 217 ° C.