Synthesis, Structure and Photoluminescent Properties of Zn(H)-Complex with 2,4,6-tris-(benzimidazolyl-2-yl)pyridine Ligand

摘要

This hydrothermal reaction of tridentate rigid 2,4,6-tris-(benzimidazolyl-2-yl)pyridine (pytbzim) ligand, linear bridging 4,4'-bipyridine (4,4'-bpy) ligand and Zn(II) salts in acetonitrile and water mixed solvents generates a new complex {[Zn_3I_6(4,4'-bpy)(pytbzim)_3].(H_2O)_2.(CH_3CN)}_n. The asymmetry unit of complex contains a [ZnI_2(pytbzim)] and a {[Zn_2I_2(4,4'-bpy)2(pytbzim)2] units, which further construct into a three-dimensional supramolecular networks through n-n stacking interaction and rich hydrogen bonds between units and solvents. The solid state photoluminescence studies reveal good fluorescent properties of the pytbzim ligand and Zn(II)-complex at room temperature.