Photodissociation of propargyl bromide and photoionization of the propargyl radical

H. Fan, S. T. Pratt

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Velocity map imaging was used to study the 193 nm photodissociation of propargyl bromide C3 H3 Br as well as the photoionization dynamics of the resulting propargyl radical C3 H3. Images were recorded by using single-photon vacuum ultraviolet ionization of the propargyl radical and by using two-photon resonant, three-photon ionization of the ground state Br (P 32 2) and spin-orbit excited Br* (P 12 2) atoms. Analysis of these data allowed the determination of the branching ratio Br: Br* as well as the photofragment angular distributions. Images of C3 H3 produced by the photodissociation of both C3 H3 Br and C3 H3 Cl were recorded at several energies between 8.97 and 9.12 eV, as well as at 9.86 eV, and showed no obvious internal energy dependence of the relative photoionization cross sections.

Original languageEnglish
Article number144313
JournalJournal of Chemical Physics
Volume124
Issue number14
DOIs
Publication statusPublished - Apr 14 2006
Externally publishedYes

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Photodissociation
Photoionization
photodissociation
photoionization
bromides
Photons
Ionization
photons
ionization
Angular distribution
internal energy
Ground state
Orbits
angular distribution
Vacuum
orbits
Imaging techniques
Atoms
vacuum
ground state

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Photodissociation of propargyl bromide and photoionization of the propargyl radical. / Fan, H.; Pratt, S. T.

In: Journal of Chemical Physics, Vol. 124, No. 14, 144313, 14.04.2006.

Research output: Contribution to journalArticle

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