Photoelectrons from resonant ionization of Na2: angular and non-Franck-Condon energy distributions

Robert G. Daniel, James S. Keller, Dina Pines, R. Stephen Berry

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


We present energy and angular distributions of photoelectrons from the resonant two-photon, two-color ionization of sodium dimer through particular rovibronic levels of the B 1Πu and A 1Σ+u state. The vibrational state distributions of the ion core produced from the B state do not correspond to Franck-Condon distributions, according to the photoelectron energy spectra. Non-Franck-Condon distributions of final states were observed at two ionizing wavelengths, and through all the four intermediate rovibrational levels of the B state studied here. Ionization through the A state showed a Franck-Condon-like distribution of final states. At best, plausible conjectures can be suggested to account for the non-Franck-Condon behavior of the B state.

Original languageEnglish
Pages (from-to)275-282
Number of pages8
JournalChemical Physics Letters
Issue number3-4
StatePublished - 2 Aug 1991
Externally publishedYes

ASJC Scopus subject areas

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


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