A spectrum of HSiF 3 has been recorded at room temperature with a gas pressure of 20 -50 Torr in the near-infrared region. A laser photoacoustic spectrometer consisting of a longitudinal resonant cell coupled to a titanium:sapphire ring laser was employed. The 5 1 and 6 1 overtone bands of H 28 SiF
High-Resolution Photoacoustic Study of the ν1 + 3ν3 Band System of Acetylene with a Titanium:Sapphire Ring Laser
✍ Scribed by X.W. Zhan; L. Halonen
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 319 KB
- Volume
- 160
- Category
- Article
- ISSN
- 0022-2852
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✦ Synopsis
The (v_{1}+3 v_{3}) band system of natural acetylene has been recorded with Doppler-limited resolution using a titanium:sapphire ring laser together with a intracavity photoacoustic detection method. The (v_{1}+3 \nu_{3}) band appears by far as the strongest feature in the spectrum but there are many weaker bands nearby. In the wavenumber region (12450-12800 \mathrm{~cm}^{-1}) we have analyzed rotationally 19 overtone and hot bands belonging to the ({ }^{12} \mathrm{C}{2} \mathrm{H}{2}) species and 2 overtone bands belonging to ({ }^{12} \mathrm{C}^{13} \mathrm{CH}_{2}). Many of the observed bands show perturbations. Some of these have been analyzed successfully with Coriolis or Fermi resonance models. (C) 1993 Academic Press, inc.
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