Synthesis and Characterization of ZnS and ZnO Nanoparticles via Thermal Decomposition of Two New Synthesized One-Dimensional Coordination Polymers at Two Different Temperatures

Abstract

Two new Zn(II) coordination polymers from ligand 2,5-bis(3-pyridyl)-3,4-diaza-2,4-hexadiene (bpdh) with different anions, [Zn(μ-bpdh)2(NCS)2]n (1) and [Zn(μ-bpdh)2(N3)2]n (2) were synthesized and characterized by IR spectroscopy, elemental analyses and X-ray crystallography. The structures of the 1 and 2 may be considered coordination polymers of zinc(II) consisting of metallocyclic chains formed by bridging bpdh ligands, making a one-dimensional array of ZnII and bpdh in a 1:2 stoichiometry. Different morphologies of ZnS and ZnO nano-particles were obtained by thermolyses of compounds 1–2 in oleic acid at different temperatures under air atmosphere, respectively. The ZnS and ZnO nanoparticles were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM).