Collisional-broadening coefficients in the ν6 band of 12CH3F perturbed by Ar

M. Lepère; G. Blanquet; J. Walrand; J.-P. Bouanich

Collisional-broadening coefficients in the ν₆band of ¹²CH₃F perturbed by Ar

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

University of Namur

Research output: Contribution to journal › Article › peer-review

Abstract

Ar-broadening coefficients are measured for 29 lines of CHF in the Q and Q branches of the ν band, using a tunable diode-laser spectrometer. The collisional widths obtained by fitting Rautian profiles to the measured shapes of the lines are significantly larger, especially for the overlapping lines at low-J values, than those obtained from Voigt profiles. The broadening coefficients for the lines belonging to the same low-J transitions (J = 7-10) appear to be greater in the Q branch than in the RQ branch. Comparisons have been made with calculated results based on a semiclassical model including adjustable potential parameters,

Original language	English
Pages (from-to)	231-234
Number of pages	4
Journal	Journal of molecular spectroscopy
Volume	192
Issue number	1
Publication status	Published - 1 Jan 1998

Cite this

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title = "Collisional-broadening coefficients in the ν6 band of 12CH3F perturbed by Ar",

abstract = "Ar-broadening coefficients are measured for 29 lines of CHF in the Q and Q branches of the ν band, using a tunable diode-laser spectrometer. The collisional widths obtained by fitting Rautian profiles to the measured shapes of the lines are significantly larger, especially for the overlapping lines at low-J values, than those obtained from Voigt profiles. The broadening coefficients for the lines belonging to the same low-J transitions (J = 7-10) appear to be greater in the Q branch than in the RQ branch. Comparisons have been made with calculated results based on a semiclassical model including adjustable potential parameters,",

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T1 - Collisional-broadening coefficients in the ν6 band of 12CH3F perturbed by Ar

AU - Lepère, M.

AU - Blanquet, G.

AU - Walrand, J.

AU - Bouanich, J.-P.

PY - 1998/1/1

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N2 - Ar-broadening coefficients are measured for 29 lines of CHF in the Q and Q branches of the ν band, using a tunable diode-laser spectrometer. The collisional widths obtained by fitting Rautian profiles to the measured shapes of the lines are significantly larger, especially for the overlapping lines at low-J values, than those obtained from Voigt profiles. The broadening coefficients for the lines belonging to the same low-J transitions (J = 7-10) appear to be greater in the Q branch than in the RQ branch. Comparisons have been made with calculated results based on a semiclassical model including adjustable potential parameters,

AB - Ar-broadening coefficients are measured for 29 lines of CHF in the Q and Q branches of the ν band, using a tunable diode-laser spectrometer. The collisional widths obtained by fitting Rautian profiles to the measured shapes of the lines are significantly larger, especially for the overlapping lines at low-J values, than those obtained from Voigt profiles. The broadening coefficients for the lines belonging to the same low-J transitions (J = 7-10) appear to be greater in the Q branch than in the RQ branch. Comparisons have been made with calculated results based on a semiclassical model including adjustable potential parameters,

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JO - Journal of molecular spectroscopy

JF - Journal of molecular spectroscopy

IS - 1

ER -

Collisional-broadening coefficients in the ν₆band of ¹²CH₃F perturbed by Ar

Abstract

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