Synthesis, Structure and Characterization of a Series of Transition Metal Complexes with Tripodal Polyimidazole Ligand

摘要

Five new metal transition metal complexes formed with tripodal polyimidazole ligand tri{2-[2-(1-methyl)imidazoly](methylimino)ethyl}amine ((min)3tren), [Zn(min)3tren](ClO4)2 (1) [Cu(min)3tren](ClO4)2 (2), [Ni(min)3tren]-(ClO4)2 (3), [Co(min)3tren](ClO4)2 (4), and [Mn(min)3tren](ClO4)2·CH3CN (5) were synthesized and characterized by elemental analysis, molar conductances, IR and electronic spectra. Analytical results show 1 : 1 metal-ligand stoichiometry and 2 : 1 type of electrolyte in all metal complexes. The crystal structures of 4 and 5 have been determined. The metal atoms in 4 and 5, being in distorted [MN6] octahedra, are coordinated with three imine nitrogen atoms and three imidazole nitrogen atoms.