Pulse radiolysis studies on stable and transient complexes of platinum

Abstract

Pulse radiolysis studies on aqueous solutions of platinum complexes reveal several transient spectra. Oxidation of Pt II (as [PtCl₄]^2–) results in the sequential formation of two short-lived complexes of Pt III, one of which can be formed directly by the reaction between e^–_aq and Pt IV ([PtCl₆]^2–). A short-lived species of Pt I is produced by reduction of Pt II. The relationships between the spectra have been studied as a function of solute concentration, oxygen and N₂O content, and pH. The stereochemistry of the transient species is discussed.