Beam maser spectroscopy on CD3CN

Alice M. Murray, Stephen G. Kukolich

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


The J=1→0 rotational transitions of CD3CN were measured using a two-cavity molecular beam maser spectrometer. This spectrometer employs the Ramsey method of separated oscillating fields to obtain very high resolutions and allows precise measurements of the hyperfine structure splittings. The nitrogen quadrupole coupling constant is eqaa(N)=- 4229.2±0.6 kHz and the deuterium quadrupole constant is eq aaQ(D)=-55.1±0.4 kHz. Assuming cylinderical symmetry about the C-D bond axis we obtain the C-D bond-axis deuterium quadrupole coupling strength of eqzzQ(O)=169.6±4.5 kHz. The A-axis rotational constant, and nitrogen and deuterium spin-rotation interaction strengths are also reported.

Original languageEnglish (US)
Pages (from-to)3557-3559
Number of pages3
JournalThe Journal of chemical physics
Issue number6
StatePublished - 1983

ASJC Scopus subject areas

  • General Physics and Astronomy
  • Physical and Theoretical Chemistry


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