Diode-laser measurements of O2-broadening coefficients in the ν3 band of CH3D

J.-P. Bouanich; K. Jacquiez; G. Blanquet; J. Walrand

doi:10.1006/jmsp.1996.0044

Diode-laser measurements of O₂-broadening coefficients in the ν₃ band of CH₃D

J.-P. Bouanich, K. Jacquiez, G. Blanquet, J. Walrand

University of Namur

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

Abstract

O-broadening coefficients have been measured for 29 lines of CHD in the P and R 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 than those derived from Voigt profiles. A comparison is made with results calculated from a semiclassical impact theory of collisional broadening. In addition to the weak electrostatic contributions of the intermolecular potential, we have considered a simple formalism for the other anisotropic interactions.

Original language	English
Pages (from-to)	386-389
Number of pages	4
Journal	Journal of molecular spectroscopy
Volume	175
Issue number	2
DOIs	https://doi.org/10.1006/jmsp.1996.0044
Publication status	Published - 1 Feb 1996

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AB - O-broadening coefficients have been measured for 29 lines of CHD in the P and R 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 than those derived from Voigt profiles. A comparison is made with results calculated from a semiclassical impact theory of collisional broadening. In addition to the weak electrostatic contributions of the intermolecular potential, we have considered a simple formalism for the other anisotropic interactions.

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Diode-laser measurements of O₂-broadening coefficients in the ν₃ band of CH₃D

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