Abstract
The kinetics of the oxidation of allyl alcohol by molecular oxygen catalyzed by Ru(III)-EDTA complex is investigated in the pH range 1.0–3.0 at 35 °C (μ = 0.1 M) in aqueous medium. In the pH range studied, the reaction is first order with respect to catalyst and substrate concentrations. An inverse first-order dependence on H + concentration is observed below pH 2.0, while the rate is independent of [H +] above pH 2.0. The rate of reaction is independent of O 2 concentration at pH 1.5 and first order with respect to O 2 concentration at pH 2.5. Mechanisms for the oxidation of allyl alcohol catalyzed by Ru(III)-EDTA have been proposed in the pH ranges 1.0–2.0 and 2.0–3.0, wherein the reactions are shown to proceed through oxidase and oxygenase routes, respectively. The rate laws for these routes are derived and the corresponding rate constants reported.
Published Version
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