Angular distributions for photodissociation of O2 in the Herzberg continuum

B. Buijsse*, W. J. Van Der Zande, A. T.J.B. Eppink, D. H. Parker, B. R. Lewis, S. T. Gibson

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    71 Citations (Scopus)

    Abstract

    Photodissociation in the Herzberg continuum of molecular oxygen has been studied at 236, 226 and 204 nm. Using ion-imaging and monitoring of O(3Pj), j=0, 1, and 2 product-atom angular distributions, the amount of parallel character of the transition was measured. In order to interpret these data, analyses of the photoabsorption oscillator strengths and the parallel-perpendicular nature of the Herzberg I, II and III bands, and extrapolation of these properties into the Herzberg-continuum region have been performed. Our measured fine-structure-averaged angular distributions are found to be consistent with this photoabsorption model. In addition, the dynamics of the dissociation process is discussed, based on the O-atom fine-structure distributions.

    Original languageEnglish
    Pages (from-to)7229-7243
    Number of pages15
    JournalJournal of Chemical Physics
    Volume108
    Issue number17
    DOIs
    Publication statusPublished - 1 May 1998

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