### Abstract

The Fourier-transformed infrared spectra of the ν_{1}+ν_{2} and ν_{2}+ν_{3} bands of S^{18}O_{2} were recorded for the first time in the region 1580-1850 cm^{-1} and theoretically analyzed. About 940 and 1210 transitions were assigned in the experimental spectra with the maximum values of quantum numbers J^{max}/K_{a}^{max}. equal to 60/20 and 60/21 to the bands ν_{1}+ν_{2} and ν_{2}+ν_{3}. The weighted fit of experimentally assigned transitions was made with the Hamiltonian model which takes into account Coriolis resonance interaction between the vibrational states (110) and (011) and Fermi interaction between the states (110) and (030). To make the ro-vibrational analysis physically more suitable, the initial values of main spectroscopic parameters have been estimated from the values of corresponding parameters of the S^{16}O_{2} species on the basis of the results of the isotopic substitution theory. Finally, the set of 26 spectroscopic parameters obtained from the fit reproduces values of 1229 initial "experimental" ro-vibrational energy levels (about 2150 transitions assigned in the experimental spectra) with the d_{rms}=1.8×10^{-4}cm^{-1}.

Original language | English |
---|---|

Pages (from-to) | 187-197 |

Number of pages | 11 |

Journal | Journal of Quantitative Spectroscopy and Radiative Transfer |

Volume | 179 |

DOIs | |

Publication status | Published - 1 Aug 2016 |

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### Keywords

- Sulfur dioxide
- High-resolution spectra
- Spectroscopic parameters

### ASJC Scopus subject areas

- Spectroscopy
- Atomic and Molecular Physics, and Optics
- Radiation

### Cite this

*Journal of Quantitative Spectroscopy and Radiative Transfer*,

*179*, 187-197. https://doi.org/10.1016/j.jqsrt.2016.03.038

**First high resolution analysis of the nu(1)+nu(2) and nu(2)+nu(3) bands of (SO2)-O-18.** / Ulenikov, O. N.; Bekhtereva, E. S.; Gromova, O. V.; Zamotaeva, V. A.; Kuznetsov, S. I.; Sydow, C.; Maul, C.; Bauerecker, S.

Research output: Contribution to journal › Article

*Journal of Quantitative Spectroscopy and Radiative Transfer*, vol. 179, pp. 187-197. https://doi.org/10.1016/j.jqsrt.2016.03.038

}

TY - JOUR

T1 - First high resolution analysis of the nu(1)+nu(2) and nu(2)+nu(3) bands of (SO2)-O-18

AU - Ulenikov, O. N.

AU - Bekhtereva, E. S.

AU - Gromova, O. V.

AU - Zamotaeva, V. A.

AU - Kuznetsov, S. I.

AU - Sydow, C.

AU - Maul, C.

AU - Bauerecker, S.

PY - 2016/8/1

Y1 - 2016/8/1

N2 - The Fourier-transformed infrared spectra of the ν1+ν2 and ν2+ν3 bands of S18O2 were recorded for the first time in the region 1580-1850 cm-1 and theoretically analyzed. About 940 and 1210 transitions were assigned in the experimental spectra with the maximum values of quantum numbers Jmax/Kamax. equal to 60/20 and 60/21 to the bands ν1+ν2 and ν2+ν3. The weighted fit of experimentally assigned transitions was made with the Hamiltonian model which takes into account Coriolis resonance interaction between the vibrational states (110) and (011) and Fermi interaction between the states (110) and (030). To make the ro-vibrational analysis physically more suitable, the initial values of main spectroscopic parameters have been estimated from the values of corresponding parameters of the S16O2 species on the basis of the results of the isotopic substitution theory. Finally, the set of 26 spectroscopic parameters obtained from the fit reproduces values of 1229 initial "experimental" ro-vibrational energy levels (about 2150 transitions assigned in the experimental spectra) with the drms=1.8×10-4cm-1.

AB - The Fourier-transformed infrared spectra of the ν1+ν2 and ν2+ν3 bands of S18O2 were recorded for the first time in the region 1580-1850 cm-1 and theoretically analyzed. About 940 and 1210 transitions were assigned in the experimental spectra with the maximum values of quantum numbers Jmax/Kamax. equal to 60/20 and 60/21 to the bands ν1+ν2 and ν2+ν3. The weighted fit of experimentally assigned transitions was made with the Hamiltonian model which takes into account Coriolis resonance interaction between the vibrational states (110) and (011) and Fermi interaction between the states (110) and (030). To make the ro-vibrational analysis physically more suitable, the initial values of main spectroscopic parameters have been estimated from the values of corresponding parameters of the S16O2 species on the basis of the results of the isotopic substitution theory. Finally, the set of 26 spectroscopic parameters obtained from the fit reproduces values of 1229 initial "experimental" ro-vibrational energy levels (about 2150 transitions assigned in the experimental spectra) with the drms=1.8×10-4cm-1.

KW - Sulfur dioxide

KW - High-resolution spectra

KW - Spectroscopic parameters

UR - http://www.scopus.com/inward/record.url?scp=84963568183&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84963568183&partnerID=8YFLogxK

U2 - 10.1016/j.jqsrt.2016.03.038

DO - 10.1016/j.jqsrt.2016.03.038

M3 - Article

AN - SCOPUS:84963568183

VL - 179

SP - 187

EP - 197

JO - Journal of Quantitative Spectroscopy and Radiative Transfer

JF - Journal of Quantitative Spectroscopy and Radiative Transfer

SN - 0022-4073

ER -