# THE PURE ROTATIONAL SPECTRUM OF $SO_{2}$ IN THE 170-1070 GHz REGION

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 Title: THE PURE ROTATIONAL SPECTRUM OF $SO_{2}$ IN THE 170-1070 GHz REGION Creators: Tretyakov, M. Yu.; Kozin, I. N.; Belov, S. P.; Krupnov, A. F.; Klisch, E.; Liedtke, M.; Klaus, Th.; Winnewisser, G.; Lafferty, W. J.; Flaud, J.- M. Issue Date: 1995 Publisher: Ohio State University Abstract: The pure rotational spectrum of the $SO_{2}$ molecule has been investigated in the 170-1070 GHz region using the RAD spectrometer with a sub-millimeter-wave synthesizer for the lower frequency range in Nizhnii $Novgorod^{1}$ and the terahertz spectrometer in $Cologne^{2}$ for the frequency range higher than 550 GHz. Transitions of various isotopic species and vibrational states up to $1500 cm^{-1}$ have been assigned. These data have been combined with all the available microwave and infrared data in a simultaneous fit to obtain refined molecular constants which have been used to produce a spectral atlas of all transitions of the isotopic species $^{32}S^{16}O_{2}, ^{33}S^{16}O_{2}$ and $^{32}S^{18}O^{16}O$ with peak intensity greater than $10^{-7} cm^{-1}$ in the frequency range 150-1500 Ghz. Description: 1. A.F. Krupnov. in ""Modern Aspects of Microwave Spectroscopy'', G.W. Chantry, Ed, Academic Press, L, (1979) 217-256. 2. G. Winnewiser, A.F. Krupnov, M.Yu. Ttretyakov, M. Liedtke, F. Lewen, A.H. Saleck, R Schieder, A.P. Shkaev and S.V. Volokhov, J. Mol. Spectrosc. 165, 294 (1994). $^{\ast}$On leave of absence from N. Novgorod. Author Institution: Applied Physics Institute of RAS, 46 Uljanova St., 603600 NizhniiNovgorod GSP-120, Russia; Universitataet zu Koeln, D-50937 Cologne, Germany; NIST, Gaithersburg, MD 20899; C.N.R.S., Tour 13, Bte. 76, 4 Place Jussieu 75252, Paris Cedex 05, France URI: http://hdl.handle.net/1811/29863 Other Identifiers: 1995-TK-01