Abstract
By investigating the ionic strength effect on the rate constants of reaction of e − aq with Rh(III) aquochlorocomplexes the composition of the first co-ordination spheres have been determined. Reduction of Rh(III) is faster in complexes containing more H 2O than C1 −. OH oxidizes Rh(III) to the corresponding Rh(IV) aquochlorocomplex. The rate constant of oxidation does not depend upon the ligands. Spectra of transient Rh(IV) complexes have been determined; Rh(IV) is relatively stable and decays with t 1 2 > 1 ms .
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