Beam maser measurements of hyperfine structure in chloroacetylene-d

Leslie M. Tack, Stephen G. Kukolich

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


The J = 1-0 transitions in 35ClCCD were measured using a beam maser spectrometer giving a molecular resonance linewidth of 3 kHz (FWHM). Analysis of the data yielded quadrupole coupling strengths eqQ(D) = 208.5 ± 1.5, eqQ(35Cl)= 79 739.5 ± 1 kHz and the 35Cl spinrotation interaction strength C(Cl) 1.3 ± 0.1 kHz. The rotational constant obtained is B = 5 186 973.9 ± 1.0 kHz. The accuracy of measured molecular parameters is improved by a factor of 20 or better.

Original languageEnglish (US)
Pages (from-to)95-99
Number of pages5
JournalJournal of Molecular Spectroscopy
Issue number1
StatePublished - Jul 1982

ASJC Scopus subject areas

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


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