Multiphoton ionization mechanisms in CH3I and CD3I

Simon J. Garrett*, D. Howard Fairbrother, Victor P. Holbert, Eric Weitz, Peter C. Stair

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Scopus citations


The processes that occur subsequent to the absorption of multiple photons by CH3I and CD3I in the 325-335 nm region have been studied using a single stage time-of-flight mass spectrometer. At the fluences employed, ionization of methyl iodide, at parent resonances that were studied, can compete with parent fragmentation and subsequent ionization of the photofragments. The predominant source of the I+, CD+2, CD+, and C+ signals observed in the wavelength region under study is fragmentation of the methyl iodide parent ion. A similar mechanism is likely for CH3I.

Original languageEnglish (US)
Pages (from-to)409-415
Number of pages7
JournalChemical Physics Letters
Issue number5-6
StatePublished - Mar 18 1994

ASJC Scopus subject areas

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


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