Browsing by Author "Loudon, Alexander G."
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Item Heavy Atom Kinetic Isotope Effects: Part 1.—Liquid Phase Decarboxylation of Malonic Acid(Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1973, 69 (5), 1973) Loudon, Alexander G.; Maccoll, Allan; Smith, DavidThe 13C/12C isotope effects in the decomposition of all the mono-13C malonic acid species have been determined. Three rate constant ratios have been determined, and two of these are in good agreement with the values recorded in the literature. The third has not previously been reported. The present results are consistent with a six-centred transition state for this reaction.Item Heavy Atom Kinetic Isotope Effects: Part 2.—Nitrogen Isotope Effects in the Decomposition of Aqueous Aromatic Diazonium Salts(Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1973, 69 (5), 1973) Loudon, Alexander G.; Maccoll, Allan; Smith, DavidThe rate constant ratio l4k/l5k was determined for the decomposition of some diazonium fluoro- borates in aqueous solution in both the presence and absence of added salts. The implications of the results for the mechanism of these reactions are discussed.