Ar- and air-broadening coefficients in the ν3 band of CS2 at room and low temperatures

F. Misago, M. Lepère, J.-P. Bouanich, G. Blanquet

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Using a diode-laser spectrometer, Ar-broadening coefficients for 16 spectral lines in the fundamental ν band of CS have been measured at five temperatures: 298.0, 273.2, 248.2, 223.2 and 198.2 K. These lines with J values ranging from 2 to 64 are located in the spectral range 1519-1547 cm. The broadening coefficients are also calculated from a semiclassical impact model performed by using a simple empirical intermolecular potential. From the theoretical and experimental results obtained at the different temperatures, we have determined the n exponent values governing the temperature dependence of the broadening coefficients. The air-broadening coefficients for four spectral lines in the ν band of CS have also been measured experimentally at the same temperatures. They are compared to the values derived from those obtained previously for the perturbers N, O and also Ar. © 2007 Elsevier Inc. All rights reserved.
Original languageEnglish
Pages (from-to)14-19
Number of pages6
JournalJournal of molecular spectroscopy
Issue number1
Publication statusPublished - 1 Mar 2008


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