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dc.creatorRezaei, M.en_US
dc.creatorOliaee, J. Noroozen_US
dc.creatorMoazzen-Ahmadi, N.en_US
dc.creatorMcKellar, A. R. W.en_US
dc.date.accessioned2011-07-12T17:34:41Z
dc.date.available2011-07-12T17:34:41Z
dc.date.issued2011en_US
dc.identifier2011-TI-10en_US
dc.identifier.urihttp://hdl.handle.net/1811/49527
dc.descriptionAuthor Institution: Department of Physics and Astronomy, University of Calgary, Calgary, AB T2N; 1N4, Canada; Steacie Institute for Molecular Sciences, National Research Council of; Canada, Ottawa, ON K1A 0R6, Canadaen_US
dc.description.abstractInfrared spectra of the CS$_2$ dimer are observed in the region of the CS$_2$ $\nu_3$ fundamental band ($\sim$ 1535 cm$^{-1}$) using a tuneable diode laser spectrometer. The weakly-bound complex is formed in a pulsed supersonic slit-jet expansion of a dilute gas mixture of carbon disulfide in helium. Contrary to the planar slipped-parallel geometry previously observed for (CO$_2$)$_2$, (N$_2$O)$_2$ and (OCS)$_2$, the CS$_2$ dimer exhibits a cross-shaped structure with $D_{2d}$ symmetry. Two bands were observed and analyzed: the fundamental (C--S asymmetric stretch) and a combination involving this mode plus an intermolecular vibration. In both cases, the rotational structure corresponds to a perpendicular ($\Delta K = \pm 1$) band of a symmetric rotor molecule. The intermolecular center of mass separation (C--C distance) is determined to be 3.539(7) {\AA}. Thanks to symmetry, this is the only parameter required to characterize the structure, if the monomer geometry is assumed to remain unchanged in the dimer. From the band centers of the fundamental and combination band an intermolecular frequency of 10.96 cm$^{-1}$ is obtained, which we assign as the torsional bending mode. This constitutes the first high resolution spectroscopic investigation of CS$_2$ dimer.en_US
dc.language.isoenen_US
dc.publisherOhio State Universityen_US
dc.titleSPECTROSCOPIC OBSERVATION OF CS$_2$ DIMERen_US
dc.typeArticleen_US
dc.typeImageen_US
dc.typePresentationen_US


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