| Literature DB >> 20401179 |
Amber L Russell, Henry W Rohrs, David Read, Daryl E Giblin, Peter P Gaspar, Michael L Gross.
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) (+).Entities:
Year: 2009 PMID： 20401179 PMCID： PMC2854564 DOI： 10.1016/j.ijms.2008.11.002
Source DB: PubMed Journal: Int J Mass Spectrom ISSN： 1387-3806 Impact factor: 1.986