两种对氨基苯磺酸金属盐的结构和催化性能研究

Study on structures and catalytic properties of two metal p-aminobenzenesulfonates

本文合成了两种对氨基苯磺酸金属配合物,[Zn(H2O)2](p-NH2C6H4SO3)2·2H2O(1)和[Cd(H2O)2](p-NH2C6H4SO3)2(2)。通过红外光谱、热重对其进行表征,X-射线单晶衍射检测确定其晶体结构,并且详细描述了两种配合物的配位行为和晶体结构特点。由数据可知,两种配合物的中心离子均与磺酸根离子配位,且都属于Monoclinic晶系,P21/n空间群。使用Biginelli反应作为探针研究了两种配合物的催化性能,实验结果表明,两种配合物均具有较高催化性能,相较于配合物2,配合物1的催化活性更高(CCDC:1:2038965;2:2038966)。

Two metal complexes of p-aminobenzenesulfonates,Zn(p-NH 2C 6H 4SO 3)2·4H 2O(1)and Cd(p-NH 2C 6H 4SO 3)2·2H 2O(2),were synthesized.They were characterized by IR and TG.The crystal structures were determined by X-ray single crystal diffraction,and the coordination behaviour and structure characteristic of the two complexes were described in detail.According to the data,both central ions in the two complexes coordinate with sulfonate ions.Both complexes belong to monoclinal crystal system,P21/n spatial group.Biginelli reactionwas used as a probe to study the catalytic performance of the two complexes.The experimental results show that complex 1 has higher catalytic activity thancomplex 2.