Synthesis, Crystal Structures and Photoluminescent Properties of Two Zinc(II) Complexes Based on Tetrafluoroterephthalate Ligand

Two new Zinc(Ⅱ) complexes,[Zn2(bpy)4(Htfbdc)2(tfbdc)](1) and [Zn(bpy)(H2O)2(tfbdc)](2)(2,2′-bpy=2,2′-bipyridine,tfbdc =tetrafluoroterephthalate) have been synthesized and characterized by elemental analysis,IR spectra,thermogravimetric and X-ray single crystal structure analyses.Structure analysis reveals that 1 and 2 possess same crystal system and space group: triclinic,P1.In 1,Zn (Ⅱ) ion has distorted octahedral geometry,while in 2,Zn(Ⅱ) ion has geometry of distorted trigonal bipyramid.Complex 1 is a dinucleate structure,which is further assembled to a 2D supramolecular network through intermolecular hydrogen bonds.Complex 2 is a mononucleate zwitterion,which is further assembled to a 3D supramolecular network via hydrogen bonds interactions.Photoluminescent properties of complexes 1 and 2 in the solid state have also been investigated.CCDC: 900443,1;900444,2.