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Your search keyword '"Bruce C. Gilbert"' showing total 3 results
Start Over Author "Bruce C. Gilbert" Journal journal of the chemical society, chemical communications
3 results on '"Bruce C. Gilbert"'

1. Polarisation effects in the e.s.r. spectra of radicals formed by the hydroxyl radical attack on the anions of acetylenedicarboxylic acid and benzene-1,3,5-tricarboxylic acid

Author

Richard O. C. Norman, Martyn C. R. Symons, Bruce C. Gilbert, Jeremy N. Winters, and James Foxall

Subjects
chemistry.chemical_classification, chemistry.chemical_compound, Electron transfer, Acetylenedicarboxylic acid, chemistry, Radical, Molecular Medicine, Hydroxyl radical, Tricarboxylic acid, Photochemistry, Benzene, Spectral line, Adduct
Abstract

Novel polarisation effects in the radicals –O2CĊHCOCO2– and a cyclohexadienyl adduct from benzene-1,3,5-tricarboxylate (the radicals are produced by the reaction of the hydroxyl radical generated from the TiIII–H2O2 couple) gave e.s.r. signals which are wholly in emission and are observed above pH ca. 8; the significant pair reaction responsible evidently involves electron transfer from TiIII to the radicals concerned.

Published
1980
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2. E.s.r. evidence for the multiplicity of side-chain oxidation pathways in the acid-catalysed decomposition of substituted hydroxycyclohexadienyl radicals

Author

Michael J. Davies, C. Barry Thomas, Bruce C. Gilbert, John Young, and Cedric W. McCleland

Subjects
chemistry.chemical_classification, Addition reaction, Acid catalysis, Chemistry, Radical, Carboxylic acid, Molecular Medicine, Side chain oxidation, Hydrogen atom, Primary alcohol, Multiplicity (chemistry), Photochemistry, Medicinal chemistry
Abstract

Addition of ˙OH to the aromatic rigns of 3-phenylpropanoic acid and 3-phenylpropanol is followed at low pH by two competing processes, oxidation at the side-chain terminus and loss of a benzylic hydrogen atom, in both of which radical-cations are believed to mediate.

Published
1984
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3. Pulse radiolysis and e.s.r. evidence for the formation of an alkene radical cation in aqueous solution

Author

Jeremy N. Winter, Klaus-Dieter Asmus, Peter S. Williams, and Bruce C. Gilbert

Subjects
chemistry.chemical_classification, Reaction rate constant, Aqueous solution, Radical ion, Absorption spectroscopy, Chemistry, Alkene, Radiolysis, Molecular Medicine, Organic chemistry, Aliphatic compound, Photochemistry, Catalysis
Abstract

Direct pulse radiolysis evidence, complemented by e.s.r. experiments, establishes that the radical cation Me2C–ĊMe2(λmax.ca. 290 nm) is formed by acid-catalysed elimination of OH– from ·CMe2CMe2OH; the radical cation deprotonates to give ·CH2CMeCMe2 with k 3.9 × 105 s–1.

Published
1987
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