Thermal studies of Zn(II), Cd(II) and Hg(II) complexes of some N-alkyl-N-phenyl-dithiocarbamates

Int J Mol Sci. 2012;13(8):9502-9513. doi: 10.3390/ijms13089502. Epub 2012 Jul 27.

Abstract

The thermal decomposition of Zn(II), Cd(II) and Hg(II) complexes of N-ethyl-N-phenyl and N-butyl-N-phenyl dithiocarbamates have been studied using thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The products of the decomposition, at two different temperatures, were further characterized by scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX). The results show that while the zinc and cadmium complexes undergo decomposition to form metal sulphides, and further undergo oxidation forming metal oxides as final products, the mercury complexes gave unstable volatiles as the final product.

Keywords: Group 12 metals; differential scanning calorimetry; dithiocarbamates; thermal behavior; thermogravimetric analysis.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cadmium / chemistry*
  • Calorimetry, Differential Scanning
  • Coordination Complexes / chemistry*
  • Crystallography, X-Ray
  • Mercury / chemistry*
  • Microscopy, Electron, Scanning
  • Molecular Conformation
  • Spectrometry, X-Ray Emission
  • Temperature
  • Thiocarbamates / chemistry*
  • Zinc / chemistry*

Substances

  • Coordination Complexes
  • Thiocarbamates
  • Cadmium
  • Mercury
  • Zinc