Absolute Line Intensities in the ν3Band of12CH3F by Diode-Laser Spectroscopy
✍ Scribed by Muriel Lepère; Ghislain Blanquet; Jacques Walrand
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 189 KB
- Volume
- 177
- Category
- Article
- ISSN
- 0022-2852
No coin nor oath required. For personal study only.
✦ Synopsis
Infrared absolute line intensities of the n 3 band of 12 CH 3 F have been measured around 9.5 mm using a diode-laser spectrometer. These line strengths were obtained from the equivalent width method and, for a few lines, by fitting a Rautian profile to the measured shape of the lines. From these results, we have deduced the vibrational bandstrength (S v 0 Å 379.2 { 5.9 cm 02 ratm 01 at 296 K) and the first Herman-Wallis factor (a Å 0.35 1 10 03 { 0.10 1 10 03 ).
📜 SIMILAR VOLUMES
We have determined the spectroscopic parameters that are necessary to describe accurately the R(0) line profile of the CH 4 2ν 3 band from about 1 Torr to a few hundred Torr of pure CH 4 . The intensities determined at each pressure are in overall agreement to better than 0.7%. The R(3) manifold of
With a tunable diode-laser spectrometer, absolute line intensity measurements have been made in the spectrum of cyanogen chloride in the vicinity of 710 cm -1 . The intensity of the fundamental ν 1 band has been found to be 6.088 cm -2 atm -1 for the 35 ClCN isotopomer and 7.121 cm -2 atm -1 for the
The absolute strengths of 93 lines belonging to the nu2 and nu5 bands of methyl fluoride were measured in the range of 1416-1503 cm-1 using a tunable diode-laser (TDL) spectrometer. These experimental line intensities were obtained from the equivalent width method. The intensities were analyzed with
He-broadening coefficients are measured for 28 lines of 12 branches of the n 6 band, using a tunable diode laser spectrometer. The collisional widths obtained by fitting Rautian profiles to the measured shapes of the lines are slightly larger than those derived from Voigt profiles. The broadening c