Dissociative ionization of hot C3H5 radicals

H. Fan, L. B. Harding, S. T. Pratt

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Abstract

The combination of ultraviolet (uv) photodissociation, vacuum-ultraviolet (vuv) photoionization, and velocity-map ion imaging is used to explore the dissociative ionization of allyl and 2-propenyl C3H5 radicals that have significant amounts of internal energy. The effect of the internal energy of the radicals on the fragmentation dynamics of the parent photoion is first discussed for the general case, and then for the specific C3H5 radicals. The results are relevant to an increasing number of studies in which single-photon vuv photoionization is used as a 'soft' ionization method for radicals produced in photodissociation and reactive scattering experiments, as well as in reactive environments such as flames and plasmas.

Original languageEnglish
Pages (from-to)1517-1534
Number of pages18
JournalMolecular Physics
Volume105
Issue number11-12
DOIs
Publication statusPublished - Jun 1 2007

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Keywords

  • Dissociative photoionization
  • Photodissociation
  • Photoionization
  • Radicals

ASJC Scopus subject areas

  • Biophysics
  • Molecular Biology
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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