Browsing by Author "Major, Michael A."

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    Kinetics of Hydrogen Isotope Exchange Reactions: Part 24.—Exchange between Benzene and Water Initiated by Photolysis of Potassium Iodide Solutions
    (Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1974, 70 (1-6), 1974) Gold, Victor; Major, Michael A.; Gregory, Maurice J.
    The action of light (253.7 nm) on solutions of potassium iodide and benzene in acidified tritium- containing water is shown to lead to tritium uptake by benzene. Systematic investigation of the exchange leads to the conclusion that the exchange is induced by hydrogen (tritium) atoms which are generated in the system by reaction of solvated electrons with hydrogen ions, the electrons being produced from iodide ions on light absorption.
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    Kinetics of hydrogen isotope-exchange reactions: Part 25- pH-Dependence of aromatic exchange initiated by photolysis of aqueous potassium iodide solutions
    (Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1974, 70 (1-6), 1974) Gold, Victor; Major, Michael A.
    The aromatic tritium exchange reaction brought about by the action of light on iodide solutions containing tracer tritium and dissolved benzene is shown to depend on the acidity of the solution, falling off to a lower value at high pH. This behaviour is consistent with the existence of two exchange routes, one initiated by hydrogen(tritium) atoms and one by solvated electrons. The latter route assumes prominence only when insufficient hydrogen ions are present to compete effectively with benzene for solvated electrons. The effect of added nitrous oxide and nitrate ions is quantitatively consistent with the action of these species as electron scavengers.