Study of highly excited ro-vibrational states of S18O2 from "hot" transitions: The bands ν1+ν2+ν3−ν2, 2ν1+ν2−ν2, and 2ν2+ν3−ν2. (July 2017)

• Record Type: Journal Article
• Authors: Ulenikov, O.N.; Gromova, O.V.; Bekhtereva, E.S.; Morzhikova, Yu.B.; Maul, C.; Sydow, C.; Bauerecker, S.
• Is Part Of: Journal of quantitative spectroscopy & radiative transfer. Volume 196(2017)
• Page Start: 159
• Page End: 164
• Publication Date: 2017-07
• Subjects: 32S18O2 -- Sulfur dioxide -- High-resolution spectra -- Spectroscopic parameters; Spectrum analysis -- Periodicals; Radiation -- Periodicals; Analyse spectrale -- Périodiques; Rayonnement -- Périodiques; Radiation; Spectrum analysis; Periodicals; 543.0858
• DOI: 10.1016/j.jqsrt.2017.04.004
• Languages: English
• ISSNs: 0022-4073

Abstract

Abstract: Transitions belonging to the three "hot" bands of the S 18 O 2 molecule, ν 1 + ν 2 + ν 3 − ν 2 (621 transitions with the values of quantum numbers J max = 49 and K a max = 14 ), 2 ν 1 + ν 2 − ν 2 (332 transitions with J max = 42 and K a max = 12 ) and 2 ν 2 + ν 3 − ν 2 (15 transitions with J max = 14 and K a =8 and 9), were assigned in the spectral 2100–2700 cm −1 region. This enabled for the first time to get high accurate values of 388, 185 and 13 ro-vibrational energies for the highly excited vibrational states (111), (210) and (021), respectively. A weighted fit analysis using the obtained ro-vibrational energies allowed us to generate a set of 20 fitted parameters which reproduce the initial 586 energy values (about 970 assigned experimental transitions) with the d rms deviations of 1.9 × 10 − 4 cm − 1, 2.8 × 10 − 4 cm −1 and 2.5 × 10 − 4 cm −1 for the states (111), (210) and (021). Abstract : Highlights: High resolution analysis of S 18 32 O 2 hot bands. Resonance interactions. Determination of spectroscopic parameters.