Born-Oppenheimer breakdown effects and hyperfine structure in the rotational spectrum of strontium monosulfide, SrS

K. C. Etchison, C. T. Dewberry, S. A. Cooke

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14 Scopus citations

Abstract

A newly constructed Fourier transform microwave spectrometer has been used to record the pure rotational spectra of four isotopomers of SrS (88Sr32S, 87Sr32S, 86Sr32S, and 88Sr34S) between 6 and 26 GHz. The molecules were produced by reacting laser ablated strontium with carbonyl sulfide (0.1% in argon). Pure rotational transitions in the ground, first and second vibrational states have been observed. The data set has enabled a multi-isotopomer fit. Born-Oppenheimer breakdown terms for both atoms have been determined. The 87Sr nuclear quadrupole coupling constant in 87Sr32S has been determined for the first time.

Original languageEnglish (US)
Pages (from-to)71-77
Number of pages7
JournalChemical Physics
Volume342
Issue number1-3
DOIs
StatePublished - Dec 6 2007

Keywords

  • Laser ablation
  • Rotational spectroscopy
  • Strontium monosulfide

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