New Analysis of 2nu1 + nu2, nu1 + nu2 + nu3, and nu2 + 2nu3 Bands of Ozone in the 2600-2900 cm-1 Region.
The 2600-2900 cm-1 spectral range is revisited for an accurate determination of line intensities of the 2nu1 + nu2, nu1 + nu2 + nu3, and nu2 + 2nu3 bands of ozone. The fit on 1702 energy levels of (012), (111), and (210) states determined from observed transitions with Jmax </= 61 and Ka max </= 17 gives a rms = 5.6 x 10(-4) cm-1 and provides a satisfactory agreement between calculated and observed line positions. Line intensities have been measured and fitted, leading to the determination of transition moment parameters for the three bands. Using these parameters, we have obtained the following estimations for the integrated band intensities S(nu1 + nu2 + nu3) = 2.509 x 10(-20), S(nu2 + 2nu3) = 0.330 x 10(-20), and S(2nu1 + nu2) = 0.0802 x 10(-20) cm-1/mol cm-2 at 296 K, with a cutoff of 10(-26) cm-1/mol cm-2. The value of the µ(210)-(000)1 parameter associated with the &phi;x operator for 2nu1 + nu2 band obtained in our analysis appears to be eight times smaller than the previously determined value of this parameter [M. A. H. Smith, C. P. Rinsland, J. M. Flaud, C. Camy-Peyret, and A. Barbe, J. Mol. Spectrosc. 139, 171-181 (1990)]. The general line listing of the 2nu1 + nu2, nu1 + nu2 + nu3, and nu2 + 2nu3 bands (up to Jmax = 70 and Ka max = 23) has been generated with an intensity cutoff 10(-26) cm-1/mol cm-2. The perturbations of (111) and (012) states by the (040) state are discussed. Copyright 1999 Academic Press.
Mikhailenko
S
Laboratory of Theoretical Spectroscopy, Institute of Atmospheric Optics, 1 Akademicheskii Av., Tomsk, 634055, Russia
Barbe
A
Plateaux
JJ
Tyuterev
VG