Voltammetric and spectroscopic behaviour of the copper adducts of thiol and thioether ligands under aerobic and anaerobic conditions

S. Çakir, E. Biçer, E. Coşkun, P. Naumov, O. Çakir

Research output: Contribution to journalArticle

Abstract

Joint spectroscopic (ESR, electronic absorption and FT IR) and voltammetric (square-wave and cyclic voltammetry) techniques were employed to investigate the properties of copper adducts with cysteine, N-acetylcysteine and methionine under aerobic and anaerobic conditions. The metal oxidation state in the solid and solvated adducts adheres to the presence of oxygen, whereas ESR results (g = 2.245, g = 2.059, A = 170 Gauss) reveal tetragonally distorted octahedral copper(II) environment under aerobic circumstances. In presence of the thiol and thioether ligands under nitrogen voltammetric measurements evidence formation of copper(I) species.

Original languageEnglish (US)
Pages (from-to)663-669
Number of pages7
JournalPolish Journal of Chemistry
Volume76
Issue number5
StatePublished - May 2002

Keywords

  • Aminoacids
  • Copper complexes
  • Redox reactions
  • Spectroscopy
  • Thioether
  • Thiol
  • Voltammetry

ASJC Scopus subject areas

  • Chemistry(all)

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