Resonance Raman studies of simple fluorinated compounds: trifluoromethyliodide and hexafluorobutadiene

Bruce S. Hudson, Mary S. Foley, John P. Chan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

Fluorine substitution can have a major effect on the electronic spectra and sometimes on the ground electronic state conformations of organic compounds. In this work we investigate the effect of perfluorination on the resonance Raman spectra of the simple diene, hexafluorobutadiene where the preferred ground state geometry is believed to be skew s-cis. A detailed comparison of theory with experiment is possible and excellent agreement is observed. In an ongoing study, we investigate the effect of fluorination on the photodissociation dynamics of methyliodide by investigation of CF 3I. The activity of the CH 3 umbrella mode observed in the resonance Raman spectrum of CH 3I obtained in resonance with the dissociative A state is attributed to a change in the geometry from pyramidal to planar as the C-I bond elongates. This should not be observed in the case of CF 3I since CF 3 is pyramidal. The consequences of this fluorine effect on the photodissociation product as revealed in the resonance Raman spectrum are investigated.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsJohn W. Hepburn
Pages249-256
Number of pages8
StatePublished - Dec 1 1995
EventLaser Techniques for State-Selected and State-to-State Chemistry III - San Diego, CA, USA
Duration: Jul 12 1995Jul 14 1995

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume2548
ISSN (Print)0277-786X

Other

OtherLaser Techniques for State-Selected and State-to-State Chemistry III
CitySan Diego, CA, USA
Period7/12/957/14/95

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Hudson, B. S., Foley, M. S., & Chan, J. P. (1995). Resonance Raman studies of simple fluorinated compounds: trifluoromethyliodide and hexafluorobutadiene. In J. W. Hepburn (Ed.), Proceedings of SPIE - The International Society for Optical Engineering (pp. 249-256). (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 2548).