pH值对含氮配体多核Cu(Ⅱ)配合物结构的影响及结构研究

Effect of pH Value on the Structures of Multinuclear Cu(II) Complexes Containing N-donor Ligands and Study on Their Structures

水溶剂中,在不同pH值条件下采用蒸发溶剂法合成了两种不同结构的含氮配体多核铜配合物Cu4(H2O)2(OH)4(phen)4·(NO3)2·H2O(1)和Cu2Cl4(phen)2(2)。采用X射线单晶衍射、元素分析等手段对配合物进行了表征。研究了溶液pH值对配合物的结构的影响。X射线单晶衍射表征结果表明,配合物(1)是氢氧根离子桥联四核铜离子配合物;配合物(2)是氯离子桥联双核铜离子配合物。

The two muhinuclear Cu （ Ⅱ ） complexes containing N-donor ligands Cu4 （H2O）2 （OH）4 （phen） 4 （NO3）2 H2O （1） and Cu2C14 （phen）2 （2） with different structures were synthesized by slow solvent evaporation method in the solution with different pH value. They were characterized by X-ray single crystal diffraction and elemental analysis methods, etc. The pH values have the effect on the structures of the complexes. The characterization results of X-ray single crystal complex （1） is tetranuclear Cu （ Ⅱ ） complex bridged by the four hydroxyl io binuclear Cu（ Ⅱ ） complex bridged by two chlorine ions. diffraction show that the ns, the complex （2） is