title: Radical Cation/Radical Reactions: A Fourier Transform Ion Cyclotron Resonance Study of Allyl Radical Reacting with Aromatic Radical Cations.
abstract: A method for the study of reactions of open-shell neutrals (radicals) and radical cations is described. Pyrolysis (25-1500 degrees C) of thermally labile compounds, such as, 1,5-hexadiene via a Chen nozzle yields a seeded beam of reactive species in helium. The pyrolysis products are then analyzed by electron ionization (EI) or reacted with stored ions. Electron ionization of the pyrolysis products of 1,5-hexadiene shows that both the allyl radical and allene are generated. Reactions of benzene radical cations and the pyrolysis products of 1,5-hexadiene result in carbon-carbon bond formation. Those reactions of allyl radical with the benzene radical cation yield the C(7)H(7) (+) ion of m/z 91, permitting an unusual entry into arenium ions. The reaction of allene with benzene radical cation in contrast yields C(9)H(10) (+). and C(9)H(9) (+).
authors.forename: Amber L
authors.initials: AL
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authors.lastname: Giblin
authors.forename: Peter P
authors.initials: PP
authors.lastname: Gaspar
authors.forename: Michael L
authors.initials: ML
authors.lastname: Gross
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