Journal article

Publication year: 2018

Pages: 141-155

Journal: Journal of Quantitative Spectroscopy and Radiative Transfer

Volume number: 210

ISSN: 0022-4073

eISSN: 1879-1352

DOI Link: https://doi.org/10.1016/j.jqsrt.2018.02.010

Publisher: Elsevier

Abstract: 
The high resolution infrared spectra of sulfur dioxide ((SO2)-S-32-O-16) were recorded with a Bruker IFS 125HR Fourier transform infrared spectrometer (Zurich prototype ZP2001) in combination with a Ge:Cu detector and analyzed in the nu(2) fundamental band region (400-650 cm(-1), (nu)over-tilde(0) = 517.8725691(77) cm(-1)). More than 4200 transitions were assigned in the experimental spectra to the nu(2) band (the maximum values of the quantum numbers are J(max) = 96 and K-a(max) = 25). The subsequent weighted fit of experimentally assigned transitions was made with the Watson Hamiltonian. The 148 highly accurate MW transitions known from the literature have been also taken into account in the fit, resulting in a set of 33 parameters which reproduces the initial 1295 infrared ro-vibrational energy values from more than 4200 experimental line positions with a root mean square deviation d(rms) = 1.5 x 10(-4) cm(-1). An analysis of 992 experimental ro-vibrational line intensities of the nu(2) band was made, and a set of four effective dipole moment parameters was obtained which reproduces the initial experimental line intensities with a relative d(rms) = 5.7%. The half-widths of 146 ro-vibrational lines (J(max) = 53 and K-a(max) = 20) were analyzed from the multi-spectrum fit, and self-pressure broadening coefficients were determined. (C) 2018 Elsevier Ltd. All rights reserved.

Harvard Citation style: Ulenikov, O., Bekhtereva, E., Gromova, O., Quack, M., Mellau, G., Sydow, C., et al. (2018) Extended analysis of the high resolution FTIR spectrum of 32S16O2 in the region of the ν2 band: Line positions, strengths, and pressure broadening widths, Journal of Quantitative Spectroscopy and Radiative Transfer, 210, pp. 141-155. https://doi.org/10.1016/j.jqsrt.2018.02.010

APA Citation style: Ulenikov, O., Bekhtereva, E., Gromova, O., Quack, M., Mellau, G., Sydow, C., & Bauerecker, S. (2018). Extended analysis of the high resolution FTIR spectrum of 32S16O2 in the region of the ν2 band: Line positions, strengths, and pressure broadening widths. Journal of Quantitative Spectroscopy and Radiative Transfer. 210, 141-155. https://doi.org/10.1016/j.jqsrt.2018.02.010