Isotopic and internal CX3 (X=D,H) rotational motion effects in the Ba⋯FCX3+hν→BaF+CX3 intracluster reactions

Photodepletion and action spectra of the laser-induced Ba⋯FCD3 fragmentation have been measured over the 16075–16380cm−1 range. The observed band and peak structures allowed us to estimate the vibrational and rotational structures of the excited complex at the transition state configuration. The rel...

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Bibliographic Details
Published in:The Journal of chemical physics 2006-06, Vol.124 (24)
Main Authors: Rinaldi, C. A., Gasmi, K., Skowronek, S., González Ureña, A.
Format: Article
Language:English
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Summary:Photodepletion and action spectra of the laser-induced Ba⋯FCD3 fragmentation have been measured over the 16075–16380cm−1 range. The observed band and peak structures allowed us to estimate the vibrational and rotational structures of the excited complex at the transition state configuration. The relative reaction probability PR(E) for the intracluster Ba⋯FCD3+hν→BaF+CD3 reaction has been determined over the cited energy range. PR(E) shows a peak structure with an energy spacing of 8.9cm−1 which was attributed to an internal rotation of the CD3 group in the intermediate state. A comparison with previous Ba⋯FCH3 photofragmentation spectra reveals the dynamical role of the internal CX3 (X=H,D) motion which is manifested by the presence of rotational resonances in the laser-induced intracluster reaction.
ISSN:0021-9606
1089-7690
DOI:10.1063/1.2208618