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Resolved torsional splitting in the ν18 and ν19- bands of propene

✍ Scribed by W.J. Lafferty; J.-M. Flaud; M. Herman

Publisher
Elsevier Science
Year
2006
Tongue
English
Weight
177 KB
Volume
780-781
Category
Article
ISSN
0022-2860

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✦ Synopsis

FT-jet spectra of propene were recorded at 0.005 cm K1 instrumental resolution around 950 cm -1 . Thanks to the jet conditions, probably corresponding to T rot close to 80 K, the torsion degrees of freedom are efficiently cooled down and the fine structure of the n 18 and n 19 vibrational bands could be investigated. The bands are perturbed and approximate variation 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.

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