一维链状席夫碱镉(Ⅱ)配合物的合成及结构表征

Synthesis and Structural Characterization of Schiff Base Cd(Ⅱ) Complexes with One-Dimensional Chain Structure

以乙酰丙酮和1,4-二(邻氨基苯氧基)丁烷进行缩合得到Schiff碱配体L,再与CdI2进行配位反应,得到了配合物[CdLI2]n(1),并用元素分析,FTIR和X-射线单晶衍射进行了表征。结果表明,配合物1属于正交晶系,空间群为Ccca,晶体参数:a=1.70361(9)nm,b=4.5965(3)nm,c=2.48640(13)nm,V=19.4702(19)nm3,Z=16,Dc=1.715g.cm-3,R1=0.0466,wR2=0.1089。在配合物1中,每个Cd()的配位环境均为扭曲四面体,配合物中每个配体L通过其两臂乙酰丙酮亚胺单元的端基氧原子同两个金属离子配位桥联形成一维链结构。

The Schiff base ligand L was synthesized by the reaction of 1,4-（o-aminophenoxy）butane and acetyacetone.CdI2 reacted with L to give complex n（1）.The complex was characterized by elemental analysis,FTIR and single crystal X-ray diffraction.The results of structural analysis indicated that the complex crystallized in the orthorhombic crystallize and space group Ccca,with the crystal cell parameters：a=1.70361（9）nm,b=4.5965（3）nm,c=2.48640（13）nm,V=19.4702（19）nm3,Z=16,Dc=1.715g·cm-3,R1=0.0466,wR2=0.1089.The coordination environment of Cd（Ⅱ） was a distorted tetrahedron,and in the complex,each L ligand linked two metal atoms using two terminal oxygen atom from acach-imine units belonging to two L ligands to generate a one-dimensional（1D）chain structure.