Transition Metal Chemistry

, Volume 23, Issue 1, pp 67–71

Copper(II) and nickel(II) complexes of glyoxaldehyde bis{N(3)-substituted thiosemicarbazones}

  • Heloisa Beraldo
  • Lynnette P. Boyd
  • Douglas X. West
Article

DOI: 10.1023/A:1006958018049

Cite this article as:
Beraldo, H., Boyd, L.P. & West, D.X. Transition Metal Chemistry (1997) 23: 67. doi:10.1023/A:1006958018049

Abstract

Copper(II) and nickel(II) complexes of glyoxaldehyde bis{N(3)-methyl-, bis{N(3)-ethyl-, bis{N(3)-dimethyl-, bis{piperidyl- and bis{hexamethyleneiminylthiosemicarbazone} have been prepared and studied spectroscopically. The five bis(thiosemicarbazones) have been characterized by their melting points, as well as i.r., electronic and 1H-n.m.r. spectra. The four-coordinate copper(II) complexes have been studied by e.s.r. spectroscopy, and the copper(II) and nickel(II) complexes by a number of the spectroscopic techniques mentioned above. Upon formation of these complexes, loss of protons from each thiosemicarbazone moiety occurs, and the bis(thiosemicarbazones) coordinate to the metal centres as dianionic, tetradentate N2S2 ligands.

Copyright information

© Chapman and Hall 1997

Authors and Affiliations

  • Heloisa Beraldo
    • 1
  • Lynnette P. Boyd
    • 1
  • Douglas X. West
    • 1
  1. 1.Department of ChemistryIllinois State UniversityNormal