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 res
Line Intensity of R(0) and R(3) of the 12CH4 2ν3 Band from Diode Laser Spectroscopy
✍ Scribed by D Hurtmans; G Dufour; W Bell; A Henry; A Valentin; C Camy-Peyret
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- English
- Weight
- 186 KB
- Volume
- 215
- Category
- Article
- ISSN
- 0022-2852
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✦ Synopsis
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 the same band has also been investigated. Relative positions and absolute intensities of the three transitions composing the triplet have been determined. The intensity distribution inside the triplet is in fair agreement with recent theoretical predictions.
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