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Título

Torsional selection rules, Raman tensors, and cross sections for degenerate modes of C2H6

Autor Fernández Sánchez, José María ; Montero, Salvador
Palabras clave Organic compounds
Librational states
Raman spectra
Spectral line intensity
Fecha de publicación 8-feb-2003
EditorAmerican Institute of Physics
Citación J. Chem. Phys 118(6): 2657-2672 (2003)
ResumenWe analyze the peculiarities induced by the torsional motion on the Raman spectra of the degenerate vibrational bands of ethane. Selection rules for the Raman transitions between the torsionally split energy levels are derived first in terms of symmetry arguments. Then, their associated intensities are calculated with a model for the torsional dependence of the molecular polarizability. New experimental spectra of the Raman degenerate bands of C2H6, some recorded in jet expansions, are also included and analyzed to show the current state of the problem.
Descripción 16 pages, 12 figures.-- PACS nrs.: 33.20.Tp, 33.15.Mt, 33.70.Fd.
Versión del editorhttp://dx.doi.org/10.1063/1.1535420
URI http://hdl.handle.net/10261/8922
DOI10.1063/1.1535420
ISSN0021-9606
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