Abstract

We have determined the activation parameters ΔlogA and ΔE for the Arrhenius equations for the kinetic isotope effect (c-C6H12/c-C6D12) and the 5/6 effect (c-C5H10/c-C6H12) in reactions of the C—H bonds of cycloalkanes with HOCl in aqueous solutions in the interval 30-90 °C. The data obtained are consistent with a chlorination mechanism including a pre-activation step with formation of an HO· ... Cl· pair, linear abstraction of the H atom by the OH group and angular attack by the Cl atom "at a distance" on the carbon atom.

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