Synthesis and Structure of Tetraploid (Imidazole) Copper(II) Terephthalate,[Cu(Im)_4](teph)

The crystal structure of \[Cu(Im)_ 4 \](teph) (Im=imidazole,teph=terephthalate) has been determined by X-ray crystallography. It crystallizes in the triclinic system,space group P ī with cell dimensions of a =0.80356(16) nm, b = 0.84269(17) nm,c =0.88967(18) nm,α =76.90(3)°,β =68.95(3)°,γ =75.94(3)°,and Z =1. Its structure of the title compound is composed of discrete monomeric molecule of \[Cu(Im)_ 4 \]-(teph). The copper(II) ions have a square plane geometry with the CuN_ 4 chromophore.

四咪唑铜配合物与DNA相互作用机理的研究

运用循环伏安法和紫外光谱法研究了四咪唑铜配合物 (Cu(Im) 2 +4)与DNA的相互作用。四咪唑铜配合物与DNA作用后 ,循环伏安曲线的峰电流减小 ,式电位正移 ;DNA的紫外特征吸收峰呈明显的减色效应和红移效应 ,证明DNA与四咪唑铜配合物之间是嵌插作用。并且求得反应生成的加合物的两种结构式分别是 2DNA Cu(Im) 2 +4和DNA Cu(Im) 2 +4。