High-resolution, temperature dependant, fourier transform infrared spectroscopy of CF3I

Sarah M. Webb, Dagmar Jaksch, Rober̀t A. McPheat, E. A. Drage, Eva Vašeková, Paulo Manuel Assis Loureiro Limão-vieira, Nigel J. Mason, K. M. Smith

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

CF3I is being considered as a replacement for some of the global warming gases currently used in the plasma industry, however before this compound can be put into wide-scale use the possible implications upon the atmosphere must be carefully considered. Calculations of global warming potentials of compounds require detailed information about the infrared absorption properties of a compound. High resolution Fourier transform infrared spectroscopy has been applied to CF3I to measure absolute infrared photo absorption cross-sections. These have been measured in the ranges (400-1400) cm-1 and (1900-2500) cm-1 at a resolution of 0.003 cm-1 for temperatures of 208.0, 251.6, 272.9 and 299.4 K over a range of pressures. Eight absorption features were observed across the measured range some of which lie within the atmospheric IR (800-1300 cm-1) window and hence may play a role in global warming.
Original languageEnglish
Pages (from-to)425-438
Number of pages14
JournalJournal Of Quantitative Spectroscopy & Radiative Transfer
Volume94
Issue number3-4
DOIs
Publication statusPublished - 1 Sep 2005

Keywords

  • CF3I
  • Infrared spectroscopy
  • Global warming
  • Ftir

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