O2-broadening of carbon disulphide 12C32S2 in the ν3 and ν3- ν1 bands

C. Lerot, M. Lengelé, J. Walrand, J.-P. Bouanich, G. Blanquet

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Using a tunable diode laser spectrometer, we have measured O broadening coefficients of CS for 31 lines in the ν fundamental band near 6.5 μm and-12 lines in the ν - ν band near 11.4 μm. The collisional halfwidths are obtained by fitting the spectral lines with a Voigt and a Rautian profile. The broadening coefficients of CS-O are also calculated from semiclassical theory involving, in addition to electrostatic interactions, successively the atom-atom Lennard-Jones model and a simple formulation for the anisotropic dispersion forces, leading to more satisfactory results.
Original languageEnglish
Pages (from-to)3521-3527
Number of pages7
JournalMolecular physics
Issue number22
Publication statusPublished - 20 Nov 2002

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