Photodissociation of HBr/LiF(001): A quantum mechanical model

Tamar Seideman*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


The photodissociation dynamics of HBr adsorbed on a LiF(001) surface is studied using time-independent quantum mechanics. The photodissociation line shape and the Br(2.P1/2)/ Br(2P3/2) yield ratio are computed and compared with the corresponding quantities for gas phase photodissociation. The angular distribution of the hydrogen photofragments following excitation of adsorbed HBr is computed and found to agree qualitatively with experimental data [Bourdon and co-workers, J. Chem. Phys. 95, 1361 (1991)]. The effect of polarization of the photon is illustrated and discussed. We find the field polarization to affect significantly the magnitude of the photodissociation signal but not the angular dependence of the photofragment distribution, in agreement with experiment and in accord with expectations for a strongly aligned adsorbed phase.

Original languageEnglish (US)
Pages (from-to)4766-4774
Number of pages9
JournalThe Journal of Chemical Physics
Issue number6
StatePublished - 1993

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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