Site-dependent photodissociation of vibrationally excited CD 3NH2

Ran Marom, Tal Weiss, Salman Rosenwaks, Ilana Bar

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


The N-H and C-D bond fission in partially deuterated methylamine, CD 3NH2, has been investigated using vibrationally mediated photodissociation. Jet-cooled action spectra and Doppler profiles of the H and D photofragments were monitored following ∼243.1 nm photodissociation of the parent pre-excited to two, three or four N-H stretch quanta. The action spectra were analyzed in terms of simplified local mode/normal mode (LM/NM) and NM models, allowing band assignment and determination of the strong resonances involved in the coupling. The Doppler profiles show that the released H and D photofragments have low translational energy content and that the H is the dominant product, although its yield decreases as higher pre-excited N-H vibrational states are dissociated. The dynamics of the site-dependent bond fission in CD3NH2 is discussed.

Original languageEnglish
Article number164312
JournalJournal of Chemical Physics
Issue number16
StatePublished - 12 May 2009

ASJC Scopus subject areas

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


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