Optika Atmosfery i Okeana Journal

Vol. 31, issue 04, article # 3

Ziatkova A. G., Zamotaevа V. A., Kоnоv I. A. High resolution study of the n₂ band of sulfur dioxide. // Optika Atmosfery i Okeana. 2018. V. 31. No. 04. P. 263–267. DOI: 10.15372/AOO20180403 [in Russian].
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Abstract:

The ν₂ band is analyzed on the basis of the combination difference method. The high resolution FTIR spectrum of the SO₂ molecule in the region 400–700 cm^-1 is used for the analysis. More than 4500 lines with the maximum values of the quantum numbers J and K_a equal to 96 and 25, respectively, are interpreted. On this basis, 1294 vibrational-rotational energy levels of the state (010) are determined. As a result of solution of the inverse spectroscopic problem with these levels, 32 effective Hamiltonian parameters are obtained, which allow us to reproduce the initial experimental data with the accuracy d_rms = 1.9 × 10^-4 сm^-1.

Keywords:

sulfur dioxide, high resolution spectrum, fundamental band

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