Extended Analysis of Line Positions and Intensities of Ozone Bands in the 2900–3400 cm−1 Region

✍ Scribed by S Mikhailenko; A Barbe; Vl.G Tyuterev

• Publisher: Elsevier Science
• Year: 2002
• Tongue: English
• Weight: 252 KB
• Volume: 215
• Category: Article
• ISSN: 0022-2852
• DOI: 10.1006/jmsp.2002.8597

✦ Synopsis

The 2900-3400 cm -1 spectral range is revisited for an accurate determination of line positions and line intensities of the 3ν 3 , ν 1 + 2ν 3 , 2ν 1 + ν 3 , and 3ν 1 bands of ozone. The fit on 4520 rotational energy levels of ( 012), ( 111), ( 210), ( 130), ( 003), ( 102), (201), and (300) vibrational states determined from observed transitions of cold and hot bands in the 2400-3400 cm -1 region with J max = 65 and K a max = 20 gives a r.m.s. = 7 × 10 -4 cm -1 and provides a satisfactory agreement between calculated and observed line positions (dimensionless standard deviation is χ = 1.44). The set of 2580 line intensities of 7 rovibrational bands has been measured and fitted with a r.m.s. = 6.9% (χ = 1.2), leading to the determination of transition moment parameters for these bands. Using these parameters we have obtained more precise estimation for the integrated band intensities S(3ν 3 ) = 1.41 × 10 -19 , S(ν 1 + 2ν 3 ) = 1.28 × 10 -20 , S(2ν 1 + ν 3 ) = 7.91 × 10 -21 , S(3ν 1 ) = 4.72 × 10 -22 cm -1 /mol cm -2 at 296 K, with a cutoff 2 × 10 -26 cm -1 /mol cm -2 . The interactions of the tetrad (003)/(102)/(201)/(300) with the (130) state and the tetrad (040)/(012)/(111)/(210) are studied.