Rotational and Hyperfine Analysis of the A1ΔG←X3Σ-G Band of 17O-CONTAINING Isotopologues of Oxygen Measured by Crds at Room and Liquid Nitrogen Temperatures

Details Rotational and Hyperfine Analysis of the A1ΔG←X3Σ-G Band of 17O-CONTAINING Isotopologues of Oxygen Measured by Crds at Room and Liquid Nitrogen Temperatures Rotational and Hyperfine Analysis of the A1ΔG←X3Σ-G Band of 17O-CONTAINING Isotopologues of Oxygen Measured by Crds at Room and Liquid Nitrogen Temperatures

Jun 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011mss..confete09l&link_type=abstract

"International Symposium On Molecular Spectroscopy, 66th Meeting, Held 20-24 June, 2011 at Ohio State University. http://molspec

Physics

Atmospheric Species

Scientific paper

The A1ΔG←X3Σ-G system of the 16O17O, 17O18O and 17O2 isotopologues of oxygen was studied by high sensitivity CW-Cavity Ring Down Spectroscopy. The spectra of a 17O highly enriched sample were recorded at room temperature between 7640 and 7917 wn and at liquid nitrogen temperature in the 7876-7893 wn region. The magnetic dipole (0-0) band was observed for all three 17O-containing isotopologues. At liquid nitrogen temperature some of the transitions were observed with partially resolved hyperfine splitting due to the 17O nuclear spin, allowing determination of the hyperfine constants. The electric quadrupole (0-0) band and the (1-1) magnetic dipole hot band were also observed for the 16O17O and 17O2 species. The rotational and hyperfine spectroscopic parameters of the X3Σ-G and A1ΔG states of the three studied isotopologues were derived from global fit of the measured line positions and microwave and Raman measurements available in the literature. The rotational constants of the A1ΔG (v=0, 1) states of 17O2 are determined for the first time.

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