Self-broadening and linestrength in the ν2 and ν5 bands of CH3F

B. Lance, M. Lepère, G. Blanquet, J. Walrand, J.-P. Bouanich

Research output: Contribution to journalArticlepeer-review


The self-broadening coefficients and the linestrengths of 30 lines in the ν and ν fundamental bands of CHF have been measured at high resolution in the range 1417-1553 cm, using a tunable diode-laser spectrometer. The lineshape parameters were obtained by fitting noncorrelated Galatry and Rautian profiles to the measured shapes of the lines. Both models show good agreement between the self-broadening coefficients derived from the spectra at "low" pressure (0.4 to 3 mbar) and those recorded at "high" pressure (6 to 18 mbar), but feature an overestimation of the dynamical friction parameter. A semiclassical calculation of the self-broadening coefficients, performed by using the main electrostatic interactions only, has provided larger results than the experimental data,
Original languageEnglish
Pages (from-to)100-109
Number of pages10
JournalJournal of molecular spectroscopy
Issue number1
Publication statusPublished - 1 Nov 1996


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