2-氯烟酸钴(Ⅱ)配合物的合成、晶体结构及性质研究

Synthesis,Crystal Structure and Properties of Coblat Complex with the 2-Chloronicotiante

采用溶剂挥发法合成了钴配合物Co L2(H2O)2(L=2-氯烟酸),通过元素分析、红外、热重和X-射线单晶衍射对其结构进行了表征.该配合物属于单斜晶系,P2(1)/c空间群,分子量Mr=408.05,a=0.743 03(9)nm,b=1.232 24(15)nm,c=0.758 83(9)nm,V=0.684 28(1)nm3,Z=2,Dc=1.980 g/m3,F(000)=410,S=1.083.六配位的Co(Ⅱ)为八面体构型,相邻的单核分子通过π-π堆积作用和分子间氢键形成二维平面结构.

A novel complex CoL2 （ H2 O） 2 （ L= 2_chloronicotinate） was synthesized by hy_drothermal reaction and characterized by elemental analysis,IR,TG and X_ray single crys_tal diffraction. The title complex in monoclinic with space group P2（1）/c,Mr=407. 05, a=0. 74303（9） nm,b=1. 23224（15） nm,c=0. 75773（9）nm,V=0. 67427（1） nm3, Z=2,Dc=1. 970 g/m3 ,F（000） =410,S=1. 073. The six-coordinated geometry of the Co （Ⅱ） is in a octahedron configuration. A two_dimensional network structure is constructed by π-π stacking interaction and intermolecular hydrogen bonds between single cells.