The rotational spectrum of the carbon chain radical HCCCO

Details The rotational spectrum of the carbon chain radical HCCCO The rotational spectrum of the carbon chain radical HCCCO

Feb 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...386l..27c&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 386, Feb. 10, 1992, p. L27-L30.

Astronomy and Astrophysics

Astrophysics

8

Far Infrared Radiation, Free Radicals, Hydrocarbons, Molecular Clouds, Rotational Spectra, Stellar Envelopes, Interstellar Gas, Millimeter Waves, Molecular Structure

Scientific paper

The bent chain radical HCCCO has been identified from laboratory measurement of 248 rotational transitions between 81 and 400 GHz. Because two molecules with the same heavy atom backbone, CCCO and HCCCHO, have already been observed in TMC-1, HCCCO is a good candidate for detection in molecular clouds and circumstellar envelopes. Rotational transition frequencies for the Ka = 0 manifold are tabulated, as well as precise values for the rotational, centrifugal distortion, and spin-rotation constants, which allow calculation of the entire rotational spectrum into the far-IR.

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