3,5-二氯水杨醛锌(Ⅱ)配合物的合成及其晶体结构

Synthesis and crystal structure of zinc(Ⅱ) complex with 3,5-dichlorosalicylaldehyde

以3,5-二氯水杨醛、乙酸锌为原料,经溶剂热法合成了一个新型的单核锌(II)配合物[Zn(Hdcsa)_2(H_2O)_2]_2·(H_2dcsa)_2·2CH_3CH_2OH,H_2dcsa=3,5–二氯水杨醛,并通过红外、元素分析和X-射线单晶衍射对其结构进行表征。配合物属于正交晶系,Pnma空间群,晶胞参数a=1. 75809(6) nm,b=2. 70404(8) nm,c=1. 14334(3) nm,α=β=γ=90°,V=5. 4354 (3) nm^3,Z=4,Dc=1. 749 g·cm^(-3),R_1=0. 0894,ωR_2=0. 2227,S=1. 147。配合物中的Zn(II)处于相同的六配位环境,形成了ZnO_4O_2八面体构型,并通过分子间的O…Cl和Cl…Cl弱作用堆积形成3D结构。

A novel znic complex[Zn(Hdcsa)2(H 2O)2]2·(H 2dcsa)·2CH 3CH 2OH(H 2dcsa=3,5-dichlorosalicylaldehyde),was synthesized by solvothermal method from 3,5-dichlorosalicylaldehyde and zinc acetate.The structure was characterized by IR,elemental analysis and X-ray single-crystal diffraction.The complex belongs to the orthorhombic system,space group Pnma,with a=1.75809(6)nm,b=2.70404(8)nm,c=1.14334(3)nm,α=β=γ=90°,V=5.4354(3)nm^3,Z=4,D c=1.749 g·cm^-3,R 1=0.0894,ωR 2=0.2227,S=1.147.Each Zn(II)atom is six coordinated and to give a octahedral geometry ZnO 4O 2.Molecules are extended to 3D framework through the O…Cl and Cl…Cl hydrogen bonds.