Structure and quadrupole coupling measurements on the NO dimer

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63 Scopus citations


Rotational transition frequencies for 14NO-14NO, 14NO-15NO, and 15NO-15NO were measured using a pulsed-nozzle Fourier transform microwave spectrometer. Rotational constants for the different isotopic combinations allowed an unambiguous structure determination. The molecule is in a cis planar structure with a bond between the nitrogen atoms and an NNO angle θ = 99.6(2)°. The NN bond length is 2.236(1) Å and the NO bond length is 1.161(4) Å. Hyperfine structure due to nitrogen quadrupole coupling and spin-rotation interactions was observed and analyzed. Rotation constants, quadrupole coupling tensor, and spin-rotation tensor elements are given.

Original languageEnglish (US)
Pages (from-to)80-86
Number of pages7
JournalJournal of Molecular Spectroscopy
Issue number1
StatePublished - Mar 1983

ASJC Scopus subject areas

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


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