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以异烟酸和邻菲咯啉(phen)为原料,采用水热合成方法,合成了一个新的配位聚合物{[Cd2(phen)2(H2O)2(C6H5NO2)2].(ClO4)}n,测定了其晶体结构。结果表明:该配合物晶体属单斜晶系,空间群P21/n。与中心镉!离子配位的3个氧原子分别来自2个异烟酸根和1个水分子,3个氮原子分别来自1个异烟酸根和1个邻菲咯啉,形成六配位变形八面体结构。由于异烟酸的桥联作用及氢键作用,配合物堆积成三维网状结构;同时配合物通过异烟酸的羧基双齿桥联配位以及邻菲咯啉和水分子作为端基配位,形成了双核笼状结构,其Cd!…Cd!距离为0.8798 nm。此外,还研究了该聚合物的荧光性质。
A new coordination polymer {[Cd2 (phen) 2 (H2O) 2 (C6H5NO2) 2] (ClO4) was synthesized by isothermal synthesis of isonicotinic acid and phenanthroline (phen) } n, measured the crystal structure. The results show that the crystal belongs to monoclinic system with space group P21 / n. The three oxygen atoms coordinated with the central cadmium ion come from two isonicotinate and one water molecule, respectively, and the three nitrogen atoms are derived from one isonicotinate and one phenanthroline, respectively. Body structure. Due to the isonicotinic acid bridging and hydrogen bonding, the complexes accumulate into a three-dimensional network structure. At the same time, the coordination complex is formed by the carboxyl-bidentate coordination of isonicotinic acid and the coordination of phenanthroline and water molecules , Forming a binuclear cage-like structure with a Cd ... Cd! Distance of 0.8798 nm. In addition, the fluorescence properties of the polymer were also studied.