Browsing by Author "Stone, Thomas J."

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    Electron Spin Resonance Detection of Radical Intermediates During Photo-oxidation by Metal Ions in Solution
    (Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1974, 70 (1-6), 1974) Greatorex, David; Hill, Richard J.; Kemp, Terence J.; Stone, Thomas J.
    Irradiation of fluid solutions of ceric and uranyl ions in various organic media in the temperature range 140–290 K gives rise in many cases to well-resolved e.s.r. spectra of solvent-derived radicals, enabling characterisation of the photolytic process. Whilst UO2+2 photo-oxidises predominantly, but not exclusively, by means of abstracting a hydrogen atom from carbon adjacent to an activating site such as —OH or —CO2H, Ce(IV) attacks by a process of C—C fission; for example RCO2H yields R˙ and R′CH2OH yields, not R′ĊHOH as is customarily found at 77 K, but R′˙.