Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5429261 | Journal of Quantitative Spectroscopy and Radiative Transfer | 2012 | 7 Pages |
Detection of atmospheric trace gases by optical remote sensing techniques relies on the availability of molecular absorption spectra over a range of relevant temperatures. Absorption cross-sections of a pure vapour of the hydrochlorofluorocarbon HCFC-141b are reported at a resolution of 0.02Â cmâ1 for a range of temperatures between 223 and 283Â K and a spectral range of 570-3100Â cmâ1. The integrated intensities of the nine main harmonic bands compare well with the data available from previous experimental studies and with theoretical calculations by ab initio and density functional theories.
⺠New infrared cross-sections of HCFC-141b are available between 223 and 283 K. ⺠The integrated intensities of the main bands compare well with the literature values. ⺠Calculations have been performed using ab initio and density functional theories. ⺠The theoretical intensities show a large dependence on the chosen basis sets.