The millimeter and sub-millimeter spectrum of the BaOH radical

M. A. Anderson, M. D. Allen, W. L. Barcaly, Lucy M Ziurys

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

The pure rotational spectrum of the X2Σ+ ground electronic states of the BaOH and BaOD radicals has been observed using millimeter/sub-millimeter direct absorption spectroscopy. The lesser abundant isotopically substituted species, 136BaOH and 137BaOH, have been detected as well. The radicals were created by reacting barium metal vapor, produced in a Broida-type oven, with either H2O2 or D2O2. The rotational and spin-rotation constants were determined for the molecules from a nonlinear leastsquares fit to the data, using a 2Σ Hamiltonian. Hyperfine constants were also derived for 137BaOH, the one species where hyperfine structure was resolved. These measurements confirm a linear structure for BaOh.

Original languageEnglish (US)
Pages (from-to)415-422
Number of pages8
JournalChemical Physics Letters
Volume205
Issue number4-5
DOIs
StatePublished - Apr 16 1993
Externally publishedYes

Fingerprint

Hamiltonians
metal vapors
ovens
rotational spectra
Electronic states
Ovens
Barium
hyperfine structure
Absorption spectroscopy
barium
absorption spectroscopy
Metals
Vapors
Molecules
electronics
molecules

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • Surfaces and Interfaces

Cite this

The millimeter and sub-millimeter spectrum of the BaOH radical. / Anderson, M. A.; Allen, M. D.; Barcaly, W. L.; Ziurys, Lucy M.

In: Chemical Physics Letters, Vol. 205, No. 4-5, 16.04.1993, p. 415-422.

Research output: Contribution to journalArticle

Anderson, M. A. ; Allen, M. D. ; Barcaly, W. L. ; Ziurys, Lucy M. / The millimeter and sub-millimeter spectrum of the BaOH radical. In: Chemical Physics Letters. 1993 ; Vol. 205, No. 4-5. pp. 415-422.
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