两种苯磺酸镉(Ⅱ)配合物的结构及催化性能研究

Study on structure and catalytic activity of two cadmium (Ⅱ) benzenesulfonates complexes

以碳酸镉为原料,分别与苯磺酸和对甲基苯磺酸反应生成[Cd(H2O)6](C6H5SO3)2(1)和[Cd(H2O)5](p-CH3C6H4SO3)2·H2O(2),产物均为无色结晶固体。通过红外光谱、热重和X-ray单晶衍射对其结构进行了表征。结果表明:两种配合物均为单斜晶系,配合物1中Cd^2+与6个配位水中的氧原子配位。配合物2中Cd^2+与5个配位水中的氧原子和一个对甲苯磺酸基团中的氧原子配位,两种配合物均形成畸形的八面体空间构型。以1-氨甲酸酯基烷基-2-萘酚的合成为探针反应,考察了苯磺酸镉和对甲基苯磺酸镉的催化性能。

Cadmium carbonate was used as a raw material to form[Cd(H2O)6](C6H5SO3)2(1)and[Cd(H2O)5](p-CH3C6H4SO3)2·H2O(2)with benzenesulfonic acid and p-toluenesulfonic acid,respectively.The products are all colorless crystalline solids.The structure was characterized by IR,TG and X-ray single crystal diffraction.The results show that two complexes belong to the monoclinic system.The Cd^2+ in the complex 1 coordinates with six oxygen atoms in six coordination waters.In the complex 2,Cd^2+ coordinates with five oxygen atoms in five coordination waters and an oxygen atom in a p-toluenesulfonic acid group.Two complexes all form deformed octahedral spatial configuration.The catalytic activity of cadmium benzenesulfonate and cadmium p-toluenesulfonate was investigated by using the synthesis of 1-carbamatoalkyl-2-naphthol as a probe reaction.