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Journal of Solution Chemistry

, Volume 40, Issue 3, pp 532–544 | Cite as

Kinetics and Mechanism of the Ligand Substitution Reaction of the Di-μ-hydroxobis(bipyridyl)dipalladium(II) Ion with some Bio-relevant Ligands

  • Subhasis Mallick
  • Biplab K. Bera
  • Parnajyoti Karmakar
  • Subala Mondal
  • Arup Mandal
  • Alak K. Ghosh
Article

Abstract

The interaction of di-μ-hydroxobis(bipyridyl)dipalladium(II) with the selected bio-relevant ligands: thioglycolic acid (HL1), glutathione(HL2) and DL-penicillamine(HL3) has been studied spectrophotometrically in aqueous medium as a function of complex and ligand concentrations, pH, and temperature at constant ionic strength. Two consecutive reaction steps are observed: the first step is dependent on the incoming ligand concentration and the second step which is independent, is assigned to ring closure. The activation parameters, conductivity data and IR data obtained also support the proposed mechanism.

Keywords

Ligand substitution Thioglycolic acid Glutathione Penicillamine Di-μ-hydroxobis(bipyridyl)dipalladium(II) Kinetics 

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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Subhasis Mallick
    • 1
  • Biplab K. Bera
    • 1
  • Parnajyoti Karmakar
    • 1
  • Subala Mondal
    • 1
  • Arup Mandal
    • 1
  • Alak K. Ghosh
    • 1
  1. 1.Department of ChemistryThe University of BurdwanBurdwanIndia

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