Far-infrared spectrum of 13CH3F between 23 and 84 cm-1

P. Pracna, S. Klee, M. Winnewisser, D. Papoušek, Yen Chu Hsu, Hann Sen Chen

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Abstract

The Fourier transform spectrum of the pure rotational transitions in the ground vibrational state of 13CH3F was measured at an unapodized resolution 0.0019 cm-1 in the 23-84 cm-1 spectrum region at elevated temperature 360 K. 527 lines with J ≤ 50 have been assigned and fitted simultaneously with the previously measured microwave and submillimeter-wave rotational transitions, and combination differences generated from the ν3 band [Papoušek, Tesař, Pracna, Kauppinen, Belov, and Tretyakov, J. Mol. Spectrosc., 146, 127-134 (1991)]. Improved set of spectroscopic parameters was obtained for the ground state of 13CH3F except for the sextic coefficient HJ0, which is not determinable even from data with J ≤ 50.

Original languageEnglish
Pages (from-to)217-226
Number of pages10
JournalJournal of molecular spectroscopy
Volume156
Issue number1
DOIs
StatePublished - Nov 1992

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