Title :

High precision rovibrational and hyperfine analysis of the v 4 =1 level of bromochlorofluoromethane

Author(s) :

Marrel, Thibaut [Auteur]
Ziskind, Michaël [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Daussy, Christophe [Auteur]
Université Paris 13 [UP13]
Université Sorbonne Paris Nord
Laboratoire de Physique des Lasers [LPL]
Chardonnet, Christian [Auteur]
Laboratoire de Physique des Lasers [LPL]

Journal title :

Journal of Molecular Structure

Pages :

195-209

Publisher :

Elsevier

Publication date :

2001-12

ISSN :

0022-2860

HAL domain(s) :

Physique [physics]

English abstract : [en]

We performed a ultra high resolution infrared spectroscopic analysis of the CF-stretching fundamental ν4 of CHFClBr at 9.4 μm. The saturated absorption spectra of the hyperfine structures of many rovibrational transitions ...
Show more >We performed a ultra high resolution infrared spectroscopic analysis of the CF-stretching fundamental ν4 of CHFClBr at 9.4 μm. The saturated absorption spectra of the hyperfine structures of many rovibrational transitions of its two more abundant isotopomers were recorded with our high resolution CO2 laser-based spectrometer. This led to the determination of the complete quadrupole coupling tensors of the 3/2 nuclear spins of the bromine and the chlorine in the v4=1 level, which allow the prediction of the hyperfine structure of any rovibrational line with an accuracy of a few kHz. By studying the isotopic dependence of these molecular constants, the quadrupole coupling tensors of two other isotopomers were extrapolated. We also report promising preliminary results of the determination of the rotational and centrifugal distortion constants of the same vibrational level.Show less >

Language :

Anglais

Popular science :

Non

Collections :

• Laboratoire de Physique des Lasers, Atomes et Molécules (PhLAM) - UMR 8523

Source :

Harvested from HAL