ROTATIONAL SPECTRA, STRUCTURES AND MODELING OF THE $SO_{2}-OCS, SO_{2}-CS_{2}$ AND $SO_{2}-CO_{2}$ COMPLEXES
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Date
1999
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Publisher
Ohio State University
Abstract
The rotational spectra of the $SO_{2}-OCS$ and $SO_{2}-CS_{2}$ weakly bound dimers have been assigned by pulsed-nozzle Fourier-transform microwave spectroscopy. Both complexes have $C_{S}$ symmetry with the $SO_{2}$ straddling the linear monomer. The $SO_{2}$ axis makes an angle with the linear monomer of $18.3^{\circ}$ and $9.8^{\circ}$ respectively in the two complexes. This is in contrast to the structure of $SO_{2}-CO_{2}.^{a}$ This complex has effective $C_{2v}$ symmetry with the $SO_{2}$ axis perpendicular to the $CO_{2}$. The structural features and dipole moments of these three species will be discussed and compared with results obtained from a semi-empirical model employing electrostatic, dispersion and repulsion interactions.
Description
$^{a}$ L.H. Sun. I.I. Ioannou and R.L. Kuczkowski, Mol. Phys., 88. (1996), 255.
Author Institution: Department of Chemistry, University of Michigan
Author Institution: Department of Chemistry, University of Michigan