NIST logo

Publication Citation: Resolved Torsional Splitting in the nu18 and nu19 Bands of Propene

NIST Authors in Bold

Author(s): Walter J. Lafferty; J.- M. Flaud; M Herman;
Title: Resolved Torsional Splitting in the nu18 and nu19 Bands of Propene
Published: May 08, 2006
Abstract: FT-jet spectra of propene were recorded at 0.005 cm-1 instrumental resolution around 950 cm-1. Thanks to the jet conditions, probably corresponding to Trot close to 80 K, the torsion degrees of freedom are efficiently cooled down and the fine structure of the *18 and *19 vibrational bands could be investigated. The bands are perturbed and approximate variations of the principal rotational constants are obtained, as well as band origins. The A/E torsional splitting appears totally unpredictable over the range of vibrational-torsional energy investigated.
Citation: Journal of Molecular Structure
Pages: pp. 780 - 781
Keywords: fourier-transform-jet spectrum;high resolution IR spectrum;molecular beam;propene;torsional splitting
Research Areas: