Abstract
The rapid reaction of aquocerium(IV) ions with quinol has been investigated in aqueous perchlorate media by the stopped-flow technique. The oscilloscope traces show a very rapid initial rise in optical density followed by a rapid decay. The rate of decay is of the first order in [CeIV]Total and of zero order in [quinol]. The rate constant is independent of acidity in the range 0·2–2·0M-HClO4. The rapid initial rise in optical density suggests the formation of an intermediate complex, and the interpretation of the kinetics of the decay also requires such a complex with a high formation equilibrium constant. The kinetics of the decay are compared with the kinetics of the oxidation of quinol by FeIII, MnIII, and CoIII.
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Schedule a callMore From: Journal of the Chemical Society A: Inorganic, Physical, Theoretical
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