Beam maser measurements of distortion effects on quadrupole coupling in NH3

David J. Ruben, Stephen G Kukolich

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High resolution (350 Hz) measurements of hyperfine structure on the J =5, K =3 inversion transition in NH, are reported. The average nitrogen quadrupole coupling strength is -393.90k0.08 kHz. This value is in excellent agreement with a value predicted by Hougen's theory.describing distortion corrections to quadrupole coupling in NH, and does not agree with a value calculated without the correction. The line center frequency and other hyperfine structure parameters are given.

Original languageEnglish (US)
Pages (from-to)3780-3784
Number of pages5
JournalThe Journal of Chemical Physics
Issue number9
Publication statusPublished - 1974


ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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