Hydrogen-broadening coefficients in the ν5 band of CH3F at room and low temperatures

Résultats de recherche: Contribution à un journal/une revueArticle

Résumé

Using a tunable diode-laser spectrometer, H-broadening coefficients have been measured for 46 lines of CHF at room temperature (297.2 K), 5 lines at 223.2 K and 22 lines at 183.2 K in the ν fundamental band near 6.6 μm. These lines were individually fitted with Voigt, Rautian, and Galatry profiles in order to determine their collisional widths. The resulting broadening coefficients are compared with theoretical values derived from a semiclassical theory involving two intermolecular potentials. In addition to electrostatic contributions, the first potential involves induction and dispersion contributions and the second potential the atom-atom Lennard-Jones model. Comparing broadening coefficients at room and low temperatures, the temperature dependence of these broadenings has been determined both experimentally and theoretically.
langue originaleAnglais
Pages (de - à)224-233
Nombre de pages10
journalJournal of molecular spectroscopy
Volume238
Numéro de publication2
Les DOIs
étatPublié - 1 août 2006

Empreinte digitale

Hydrogen
room temperature
hydrogen
coefficients
Atoms
laser spectrometers
Temperature
atoms
Semiconductor lasers
Spectrometers
Electrostatics
induction
diodes
electrostatics
temperature dependence
profiles

Citer ceci

@article{071a2b85176740eda05626bbeeff8f0c,
title = "Hydrogen-broadening coefficients in the ν5 band of CH3F at room and low temperatures",
abstract = "Using a tunable diode-laser spectrometer, H-broadening coefficients have been measured for 46 lines of CHF at room temperature (297.2 K), 5 lines at 223.2 K and 22 lines at 183.2 K in the ν fundamental band near 6.6 μm. These lines were individually fitted with Voigt, Rautian, and Galatry profiles in order to determine their collisional widths. The resulting broadening coefficients are compared with theoretical values derived from a semiclassical theory involving two intermolecular potentials. In addition to electrostatic contributions, the first potential involves induction and dispersion contributions and the second potential the atom-atom Lennard-Jones model. Comparing broadening coefficients at room and low temperatures, the temperature dependence of these broadenings has been determined both experimentally and theoretically.",
author = "C. Lerot and G. Blanquet and J.-P. Bouanich and J. Walrand and M. Lep{\`e}re",
note = "Copyright 2008 Elsevier B.V., All rights reserved.",
year = "2006",
month = "8",
day = "1",
doi = "10.1016/j.jms.2006.05.007",
language = "English",
volume = "238",
pages = "224--233",
journal = "Journal of molecular spectroscopy",
issn = "0022-2852",
publisher = "Academic Press Inc.",
number = "2",

}

Hydrogen-broadening coefficients in the ν5 band of CH3F at room and low temperatures. / Lerot, C.; Blanquet, G.; Bouanich, J.-P.; Walrand, J.; Lepère, M.

Dans: Journal of molecular spectroscopy, Vol 238, Numéro 2, 01.08.2006, p. 224-233.

Résultats de recherche: Contribution à un journal/une revueArticle

TY - JOUR

T1 - Hydrogen-broadening coefficients in the ν5 band of CH3F at room and low temperatures

AU - Lerot, C.

AU - Blanquet, G.

AU - Bouanich, J.-P.

AU - Walrand, J.

AU - Lepère, M.

N1 - Copyright 2008 Elsevier B.V., All rights reserved.

PY - 2006/8/1

Y1 - 2006/8/1

N2 - Using a tunable diode-laser spectrometer, H-broadening coefficients have been measured for 46 lines of CHF at room temperature (297.2 K), 5 lines at 223.2 K and 22 lines at 183.2 K in the ν fundamental band near 6.6 μm. These lines were individually fitted with Voigt, Rautian, and Galatry profiles in order to determine their collisional widths. The resulting broadening coefficients are compared with theoretical values derived from a semiclassical theory involving two intermolecular potentials. In addition to electrostatic contributions, the first potential involves induction and dispersion contributions and the second potential the atom-atom Lennard-Jones model. Comparing broadening coefficients at room and low temperatures, the temperature dependence of these broadenings has been determined both experimentally and theoretically.

AB - Using a tunable diode-laser spectrometer, H-broadening coefficients have been measured for 46 lines of CHF at room temperature (297.2 K), 5 lines at 223.2 K and 22 lines at 183.2 K in the ν fundamental band near 6.6 μm. These lines were individually fitted with Voigt, Rautian, and Galatry profiles in order to determine their collisional widths. The resulting broadening coefficients are compared with theoretical values derived from a semiclassical theory involving two intermolecular potentials. In addition to electrostatic contributions, the first potential involves induction and dispersion contributions and the second potential the atom-atom Lennard-Jones model. Comparing broadening coefficients at room and low temperatures, the temperature dependence of these broadenings has been determined both experimentally and theoretically.

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U2 - 10.1016/j.jms.2006.05.007

DO - 10.1016/j.jms.2006.05.007

M3 - Article

AN - SCOPUS:33745897928

VL - 238

SP - 224

EP - 233

JO - Journal of molecular spectroscopy

JF - Journal of molecular spectroscopy

SN - 0022-2852

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ER -