TY - JOUR
T1 - N2-broadening coefficients in the ν3 band of CS2 at room and low temperatures
AU - Misago, F.
AU - Lepère, M.
AU - Walrand, J.
AU - Bouanich, J.-P.
AU - Blanquet, G.
N1 - Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2006/5/1
Y1 - 2006/5/1
N2 - Using a tunable diode-laser spectrometer, N-broadening coefficients have been measured for 15 lines in the ν band of CS 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 cm. 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.
AB - Using a tunable diode-laser spectrometer, N-broadening coefficients have been measured for 15 lines in the ν band of CS 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 cm. 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.
UR - http://www.scopus.com/inward/record.url?scp=33646174625&partnerID=8YFLogxK
U2 - 10.1016/j.jms.2006.02.007
DO - 10.1016/j.jms.2006.02.007
M3 - Article
AN - SCOPUS:33646174625
SN - 0022-2852
VL - 237
SP - 46
EP - 52
JO - Journal of molecular spectroscopy
JF - Journal of molecular spectroscopy
IS - 1
ER -