Analysis of the D1 Δ-X1Σ+ transition in CO observed by two-photon excitation

Carter Kittrell, Bruce A. Garetz

Research output: Contribution to journalArticlepeer-review


The D1 Δ-X1Σ+ transition in carbon monoxide has been observed by two-photon excitation with a frequency-doubled pulsed dye laser. The rotational structure of thirteen υ′= 0 bands has been analyzed: the υ′= 6-12 bands in 12C16O, υ′= 7, 10 and 12 in 13C16O, and υ′= 7, 10 and 12 in 13C18O. Detailed assignments are presented, and from them the rotational and vibrational constants of the D1 Δ state have been determined. Using a single mass-reduced fit, molecular constants are calculated for all three isotopomers. Analysis of the 7-0 band of the I1Σ--X1Σ+ transition is also given.

Original languageEnglish (US)
Pages (from-to)31-40
Number of pages10
JournalSpectrochimica Acta Part A: Molecular Spectroscopy
Issue number1
StatePublished - 1989

ASJC Scopus subject areas

  • General Engineering


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