TY - JOUR
T1 - Radical cation/radical reactions
T2 - A Fourier transform ion cyclotron resonance study of allyl radical reacting with aromatic radical cations
AU - Russell, Amber L.
AU - Rohrs, Henry W.
AU - Read, David
AU - Giblin, Daryl E.
AU - Gaspar, Peter P.
AU - Gross, Michael L.
PY - 2009/10/15
Y1 - 2009/10/15
N2 - A method for the study of reactions of open-shell neutrals (radicals) and radical cations is described. Pyrolysis (25-1500 °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 C7H7+ ion of m/z 91, permitting an unusual entry into arenium ions. The reaction of allene with benzene radical cation in contrast yields C9H10+ and C9H9+.
AB - A method for the study of reactions of open-shell neutrals (radicals) and radical cations is described. Pyrolysis (25-1500 °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 C7H7+ ion of m/z 91, permitting an unusual entry into arenium ions. The reaction of allene with benzene radical cation in contrast yields C9H10+ and C9H9+.
KW - Allyl radical
KW - Aromatic radical cation
KW - Chen nozzle
KW - Fourier transform ion cyclotron resonance mass spectrometry
KW - Radical-radical cation reaction
KW - Reaction mechanism
UR - http://www.scopus.com/inward/record.url?scp=70349737939&partnerID=8YFLogxK
U2 - 10.1016/j.ijms.2008.11.002
DO - 10.1016/j.ijms.2008.11.002
M3 - Article
AN - SCOPUS:70349737939
SN - 1387-3806
VL - 287
SP - 8
EP - 15
JO - International Journal of Mass Spectrometry
JF - International Journal of Mass Spectrometry
IS - 1-3
ER -