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KINETICS OF THE OXIDATION OF 2-HYDROXY-2-METHYLPROPANOIC ACID BY AQUA-VANADIUM(V) IONS IN AQUEOUS PERCHLORATE MEDIA

DOI: 10.1039/DT9800002143

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 2143 - 2146 (1980)

Update date:2022-08-29

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Authors:

Nazer, Abdul Fattah M.Nazer, Abdul Fattah M.

Wells, Cecil F.Wells, Cecil F.

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Article abstract of DOI:10.1039/DT9800002143

Measurements on the rate of oxidation of 2-hydroxy-2-methylpropanoic acid (hmpa) by Vvaq in aqueous perchloric acid at high initial ratios : vaq> show that the order in vaq> is unity but that in lies between zero and unity.The variation of rate with acidity shows that two pathways operate, each involving a 1:1 complex of Vv and hmpa; one complex differs from the other by the addition of two protons.Overall values of the enthalpies and entropies of activation are determined; these are compared with values obtained for the oxidation of other substrates by Vvaq and those for the oxidation of hmpa by other aqua-cations.

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