High-resolution spectroscopy of the v2 = 2 a ← v2 = 1 s band of 14NH3

Hiroyuki Sasada, R. H. Schwendeman, Gottfried Magerl, R. L. Poynter, J. S. Margolis

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24 Citations (Scopus)


Twenty-one transitions of the v2 = 2 a ← v2 = 1 s hot band of 14NH3 have been observed by an infrared microwave sideband laser spectrometer with an absolute accuracy of 0.00002 cm-1. One hundred and seventeen transitions of the band have been obtained by a Fourier transform infrared spectrometer at a resolution of 0.005 cm-1. A weighted least-squares analysis of these data has been carried out to yield 17 molecular parameters for the v2 = 2 a state. These parameters reproduce the experimental frequencies with a root mean square deviation of 0.000123 cm-1. To calculate the frequencies to this accuracy it was necessary to take into account the Δ(K - l) = ±3 interaction between the v2 = 2 a and v4 = 1 a states.

Original languageEnglish
Pages (from-to)317-330
Number of pages14
JournalJournal of Molecular Spectroscopy
Issue number2
Publication statusPublished - 1986 Jun

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Spectroscopy
  • Physical and Theoretical Chemistry


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