氯离子桥联镉(Ⅱ)超分子配合物的合成及晶体结构研究

Study on Syntheses and Crystal Structure of Supermolecular Complex of Cadmium(Ⅱ) Bridged by Chlorine Ion

常温下用CdCl2和bipy(2,2′-联吡啶)混合反应得到配位聚合物[Cd(bipy)Cl2]n.氯离子双桥联配合物形成一维链状结构,链与链间靠π-π堆积作用形成二维网状结构.用X-射线单晶衍射仪测定其晶体结构.配合物为单斜晶系,C2/c空间群.晶胞参数a=1.742 4(8)nm,b=0.925 3(4)nm,c=0.711 7(3)nm,β=110.946°(8),Z=4,V=1.071 6(8)nm3,Dc=2.104 g/cm3,μ=2.499 mm-1,F(000)=656,R1=0.022 6,wR2=0.050 4[I>2sigma],R2=0.027 9,wR2=0.052 2(all data).

In normal temperature, the single crystal was obtained by reacting cadmium chloride with 2,2＇-bipyridine. Chlorine Ion bridges the Cd（Ⅱ） to form a 1-D Chain, 2-D network structure was formed through π-π stacking of 2,2＇-bipyridine of neighboring chain. The crystal structure was determined by X-ray diffraction. The crystallographic data are crystallized in Monoclinic with group C2/c, a=1.742 4（8）nm,b=0.925 3（4）nm,c=0.711 7（3）nm,β=110.946°（8）,Z=4,V=1.071 6（8）nm^3,Dc=2.104 g/cm^3,μ=2.499 mm^-1,F（000）=656,R1=0.022 6,wR2=0.050 4[I〉2sigma],R2=0.027 9,wR2=0.052 2（all data）.