title: Synthesis, characterization and thermal studies of Zn(II), Cd(II) and Hg(II) complexes of N-methyl-N-phenyl dithiocarbamate: the single crystal structure of [(C(6)H(5))(CH(3))NCS(2)](4)Hg(2).
abstract: Zn(II), Cd(II) and Hg(II) complexes of N-methyl-N-phenyl dithiocarbamate have been synthesized and characterized by elemental analysis and spectral studies (IR, (1)H and (13)C-NMR). The single crystal X-ray structure of the mercury complex revealed that the complex contains a Hg centre with a distorted tetrahedral coordination sphere in which the dinuclear Hg complex resides on a crystallographic inversion centre and each Hg atom is coordinated to four S atoms from the dithiocarbamate moiety. One dithiocarbamate ligand acts as chelating ligand while the other acts as chelating bridging ligand between two Hg atoms, resulting in a dinuclear eight-member ring. The course of the thermal degradation of the complexes has been investigated using thermogravimetric and differential thermal analyses techniques. Thermogravimetric analysis of the complexes show a single weight loss to give MS (M = Zn, Cd, Hg) indicating that they might be useful as single source precursors for the synthesis of MS nanoparticles and thin films.
authors.affiliation: Department of Chemistry, University of Fort Hare, Private Bag X1314, ALICE 5700, South Africa; E-Mail: donwudiwe@ufh.ac.za.
authors.forename: Damian C
authors.initials: DC
authors.lastname: Onwudiwe
authors.forename: Peter A
authors.initials: PA
authors.lastname: Ajibade
mesh_terms: D002104:Cadmium / Q000737:chemistry*; D002152:Calorimetry, Differential Scanning; D056831:Coordination Complexes / Q000138:chemical synthesis / Q000737:chemistry*; D018360:Crystallography, X-Ray; D008628:Mercury / Q000737:chemistry*; D008968:Molecular Conformation; D013696:Temperature; D013818:Thermogravimetry; D013859:Thiocarbamates / Q000737:chemistry*; D015032:Zinc / Q000737:chemistry*
chemical_list: D056831:Coordination Complexes; D013859:Thiocarbamates; D002104:Cadmium; D008628:Mercury; D015032:Zinc