High-resolution Fourier-transform infrared spectrum of the13CH3F fundamental band of13CH3F

D. Papoušek, Yen Chu Hsu, S. Klee, M. Winnewisser

Research output: Contribution to journalArticlepeer-review

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The v6 vibration-rotational band of13CH3F has been measured in the range 1070-1260 cm-1 using a Fourier-transform spectrometer with unapodized resolution 0.0027 cm-1. The wavenumbers of 1262 vibration-rotational transitions to the v6=1 (E) vibrational state have been assigned and fitted by least squares with the standard deviation of the fit 1.31×10-4 cm-1. This made it possible to determine 19 spectroscopical parameters of the v6=1 state including parameters of the Δk=±2, Δl=∓2 and Δk=±4, Δl=∓2 interactions leading to the A1-A2 splittings of many rotational levels with kl=+1 and kl=-2.

Original languageEnglish
Pages (from-to)419-426
Number of pages8
JournalActa Physica Hungarica
Issue number4
StatePublished - Sep 1994


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