Kinetics and Mechanism of the Ligand Substitution Reaction of the Di-<Emphasis Type="Italic">μ</Emphasis>-hydroxobis(bipyridyl)dipalladium(II) Ion with some Bio-relevant Ligands |
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| Authors: | Subhasis Mallick Biplab K Bera Parnajyoti Karmakar Subala Mondal Arup Mandal Alak K Ghosh |
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| Institution: | (1) Department of Chemistry, The University of Burdwan, Burdwan, 713104, India;(2) Department of Chemistry, National Institute of Technology, Durgapur, 713209, India; |
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| 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. |
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