Laser Photoacoustic Spectroscopy of OCS in the Region 10 890–14 000 cm−1

✍ Scribed by M Lecoutre; I Hadj Bachir; T.R Huet; A Fayt

• Publisher: Elsevier Science
• Year: 2002
• Tongue: English
• Weight: 254 KB
• Volume: 216
• Category: Article
• ISSN: 0022-2852
• DOI: 10.1006/jmsp.2002.8624

✦ Synopsis

This work continues a series of papers devoted to the analysis of the vibration-rotation energy structure of OCS with a global effective model. A spectrum of natural carbonyl sulfide in the near infrared region was recorded at room temperature with a gas pressure of 120 hPa. A laser photoacoustic spectrometer consisting of a longitudinal resonant cell coupled to a titanium : sapphire ring laser was employed. Twelve new overtone and combination bands were observed at high resolution in the region between 10 890 and 14 000 cm -1 : 10 0 5-00 0 0, 14 0 4-00 0 0, 02 0 5-00 0 0, 24 0 4-00 0 0, 20 0 5-00 0 0, 13 1e 5-01 1e 0, 13 1f 5-01 1f 0, 12 0 5-00 0 0, 22 0 5-00 0 0, 30 0 5-00 0 0, 11 1 6-01 1 0, and 00 0 7-00 0 0. Effective state parameters were obtained from the band-by-band least-squares fits. The new data introduced in the global analysis with the molecular parameters obtained by E.