Chlorine Quadrupole Coupling in Methyl Chloride. Variation of Quadrupole Coupling Strength with Isotopic Substitution

Stephen G. Kukolich, Albert C. Nelson

Research output: Contribution to journalArticle

22 Scopus citations

Abstract

High-resolution measurements of hyperfine structure on the J = 1 → 0 transitions in CH335Cl and CH337Cl were made using a molecular beam maser spectrometer. The measured 35Cl quadrupole coupling strength is eqQ = 74,753 ± 2 kHz and spin-rotation constant C(35Cl) = 2.4 ± 0.6 kHz. The measured 87C1 quadrupole coupling strength is eqQ = 58,910 ± 2 kHz and spin-rotation constant C(37Cl) = 1.4 ± 0.6 kHz. These results are compared with 35Cl quadrupole coupling strengths obtained for CH2DCl and CD3Cl and a systematic decrease in 35Cl quadrupole coupling is related to changes in the structure and properties of the methyl group on deuterium substitution.

Original languageEnglish (US)
Pages (from-to)680-682
Number of pages3
JournalJournal of the American Chemical Society
Volume95
Issue number3
DOIs
StatePublished - Feb 1 1973
Externally publishedYes

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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