Preparation,characterization and crystal structures of two transition metal complexes derived from di-Schiff base ligand of N,N'-bis-[(1-benzimidazo-2-yl) ethylidene] diethylenetriamine
The reactions of Zn Cl2 and Cd Cl2·2. 5H2 O with di-Schiff base ligand of N,N'-bis-[( 1-benzimidazo-2-yl) ethylidene]diethylenetriamine( LA) were investigated in presence of Na Cl O4 in ethanol. The five-coordinated complex of [Zn LBCl ]· Cl O4( 1) and the six-coordinated complex of[Cd LACl]·Cl O4·H2O( 2) were prepared by the reactions of LAwith Zn Cl2. LBof N-[( 1-benzimidazo-2-yl) ethylidene]diethylenetriamine was a tetra-dentate mono-Schiff base ligand prepared by the hydrolysis of the precursor di-Schif...