Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5416038 | Journal of Molecular Spectroscopy | 2006 | 7 Pages |
Abstract
Using a tunable diode-laser spectrometer, N2-broadening coefficients have been measured for 15 lines in the ν3 band of C32S2 at room and low temperatures (298, 273.2, 248.2, 223.2, and 198.2 K). These lines with J values ranging from 2 to 62 are located in the spectral range 1519-1545 cmâ1. The collisional widths are obtained by fitting each measured spectral line with a Voigt and a Rautian lineshape model and for a few lines we also used a Galatry model. From these results, we have determined the n parameter of the temperature dependence of each broadening coefficient. A semiclassical calculation of these broadenings has been performed by considering in addition to the main electrostatic quadrupole-quadrupole interaction an anisotropic dispersion contribution leading to satisfactory results at all temperatures and providing the n temperature dependence parameter in good agreement with the experimental determination.
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Authors
Félicité Misago, Muriel Lepère, Jacques Walrand, Jean-Pierre Bouanich, Ghislain Blanquet,