The millimeter-wave spectrum of the MgOH radical (X 2Σ+)

W. L. Barclay, M. A. Anderson, L. M. Ziurys

Research output: Contribution to journalArticlepeer-review

45 Scopus citations


The pure rotational spectrum of the ground electronic state (X 2Σ+) of the MgOH radical has been observed using millimeter/sub-millimeter direct absorption spectroscopy, as well as that of MgOD, and the less abundant magnesium isotopically-substituted species 25MgOH and 26MgOH. The free radicals were created in a Broida-type oven by the reaction of metal vapor with hydrogen peroxide. The spin-rotation splitting was readily observed in these data; however, the hyperfine structure was only resolved for 25MgOH. The rotational and spin-rotation constants of the radicals have been determined from a non-linear least-squares fit using a 2Σ Hamiltonian. The 25Mg hyperfine constants are also estimated.

Original languageEnglish (US)
Pages (from-to)225-232
Number of pages8
JournalChemical Physics Letters
Issue number3-4
StatePublished - Aug 14 1992

ASJC Scopus subject areas

  • General Physics and Astronomy
  • Physical and Theoretical Chemistry


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