Hyperfine structure, mm wave rotational spectrum and molecular constants of the diatomic IF in its electronic ground stateX1 Σ+

  • J. Hoeft
  • K. P. R. Nair
Article
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Abstract

At wavelengths near 1 mm the rotational transitionsJ=16←15 and 17←16 of the diatomic IF have been observed. The strong hyperfine transitions ΔF=+1 were measured in vibrational statesv=0, 1 and 2. The much weaker ΔF=0 components could be detected in the rotational transitionJ=17←16 of the molecule in its ground vibrational state. The analysis including previous measurements at larger wavelengths resulted in improved hyperfine parameters, an extended set of Dunham energy coefficients and potential constants.

PACS

33.20.Bx 
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Copyright information

© Springer-Verlag 1988

Authors and Affiliations

  • J. Hoeft
    • 1
  • K. P. R. Nair
    • 1
  1. 1.Institut für Molekülphysik der Freien Universität BerlinBerlin 33Germany

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