Two New Solvent-modulated Zinc(II) Metal-Organic Hybrid Materials based on Rigid Tripodal Carboxylate Ligand and 2,2′-Bipy Co-ligand: Crystal Structures and Luminescent Properties

Abstract

The zinc(II) coordination polymers [Zn(Htatb)(2,2′-bipy)·(NMP)·H 2 O] (1) and [Zn 3 (tatb) 2 (2,2′-bipy) 3 ·H 2 O] (2) (H 3 tatb = 4,4′,4′′-s-triazine-2,4,6-triyl-tribenzoic acid; 2,2′-bipy = 2,2′-bipyridyl, NMP = N-methyl-2-pyrrolidon), were synthesized hydrothermally, and characterized by infrared spectroscopy (IR), powder X-ray diffraction (PXRD), and single-crystal X-ray diffraction. Both compounds 1 and 2 possess expectant low dimensional coordination structures, which further connected into interesting 3D networks by hydrogen bond and strong π-π interactions. Moreover, the thermal stabilities and fluorescent properties of 1 and 2 were investigated.