Measurement of the rotational spectra of OH+ and OD+ by laser magnetic resonance

M. H.W. Gruebele, R. P. Müller, R. J. Saykally

Research output: Contribution to journalArticlepeer-review


Far IR rotational transitions between the four lowest rotational levels in the X 3Σ- vibronic ground states of OH+ and OD+ have been observed by laser magnetic resonance spectroscopy. Ground state molecular constants, including the three g factors, have been determined and employed in the calculation of a Born-Oppenheimer equilibrium geometry. The centrifugal distortion of the spin-rotation interaction is found to have a significant effect on the determination of other molecular constants. Hyperfine splittings have been resolved and analyzed for OH+, but could not be observed in OD+ spectra with a 6 MHz collision-broadened linewidth.

Original languageEnglish (US)
Pages (from-to)2489-2496
Number of pages8
JournalThe Journal of Chemical Physics
Issue number5
StatePublished - 1985
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry


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