Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5415980 | Journal of Molecular Spectroscopy | 2007 | 6 Pages |
Abstract
O2-broadening coefficients have been measured for 16 lines in the P and R branches of the fundamental ν3 band of 12C32S2 at room and low temperatures (298.0, 273.2, 248.2, 223.2, and 198.2 K), using a tunable diode laser spectrometer and a low temperature cell. These lines from P(62) and R(64) are located in the spectral range 1519-1547 cmâ1. The collisional half-widths are obtained by fitting each observed profile with the Voigt and Rautian lineshape models. The broadening coefficients have also been calculated at all experimental temperatures using a semiclassical calculation performed by considering in addition to the electrostatic quadrupole-quadrupole interaction, a simple anisotropic contribution. Finally, from all the results, the parameter n of the temperature dependence of the broadening coefficients has been determined both experimentally and theoretically.
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Authors
Félicité Misago, Muriel Lepère, Jacques Walrand, Jean-Pierre Bouanich, Ghislain Blanquet,