新型薁磺酸镉配位聚合物的合成及其晶体结构

Synthesis and Crystal Structure of A Novel Cadmium Complex with Sodium Azulene Sulfonate

以薁磺酸钠为配体,通过溶液法合成了一种新型一维链状聚合物(1),其结构和性能经IR,X-射线单晶衍射和热重分析表征。1属单斜晶系,空间群P21/c,晶胞参数a=2.349 6(7)nm,b=0.562 48(18)nm,c=1.148 7(4)nm。1的中心Cd(Ⅱ)与4个薁磺酸阴离子的4个氧原子及两个水分子的两个氧原子配位,形成六配位八面体构型。配合物1通过磺酸基桥连作用将相邻的两个Cd(Ⅱ)形成一维链状结构。

A novel coordination cadmium complex（1） was synthesized by the solution method using sodium azulene sulfonate as ]igand. The structure and property were characterized by IR, X-ray single- crystal diffraction and thermogravimetric analysis. Complex 1 belongs to monoclinic system, space group P21/c with a =2.349 6（7） nm, b =0.562 48（18） nm, c =1. 148 7（4） nm. The central Cd （ Ⅱ ） was six-coordinated with four oxygen atoms of four azulene sulfonate molecules and two oxygen atoms of waters, forming a octa-hedron structure. Complex 1 is a 1D chain structure, in which adjacent Cd（II） were linked together by the sulfonic acid group.