preparation and crystal structure determination of zinc (ii) bromide complexes at the presence of various ligands

In this paper, we report the syntheses and crystal structure determination of three mononuclear and four-coordinated zinc (ii) bromide complexes with chemical formula of [zn(tsc)2]br2 (1), zn(pph3)2br2 (2) and zn(brcatsc)br2 (3). the synthesized complexes are characterized by elemental analysis (chn) and their crystal structures are investigated by single crystal x-ray diffraction. in complex 1, the tsc coordinates to the zinc (ii) ion as a bidentate ligand via n and s atoms. in complex 3, the thiosemicarbazone ligand brcatsc coordinates to zinc (ii) ion as a monodentate ligand via s atom. in these complexes, the zinc (ii) ion coordinated in a distorted tetrahedral coordination geometry.