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)

Int J Mol Sci. 2011;12(3):1964-78. doi: 10.3390/ijms12031964. Epub 2011 Mar 17.

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.

Keywords: crystal structure; dithiocarbamate; group 12 complexes; thermal studies.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cadmium / chemistry*
  • Calorimetry, Differential Scanning
  • Coordination Complexes / chemical synthesis
  • Coordination Complexes / chemistry*
  • Crystallography, X-Ray
  • Mercury / chemistry*
  • Molecular Conformation
  • Temperature
  • Thermogravimetry
  • Thiocarbamates / chemistry*
  • Zinc / chemistry*

Substances

  • Coordination Complexes
  • Thiocarbamates
  • Cadmium
  • Mercury
  • Zinc