Detection of the C4H radical toward IRC plus 10216

Details Detection of the C4H radical toward IRC plus 10216 Detection of the C4H radical toward IRC plus 10216

Aug 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...224l..27g&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 224, Aug. 15, 1978, p. L27-L30.

Astronomy and Astrophysics

Astrophysics

83

Astronomical Spectroscopy, Butanes, Interstellar Chemistry, Microwave Spectra, Molecular Structure, Radicals, Electron Spin, Emission Spectra, Line Spectra, Millimeter Waves, Molecular Ions, Molecular Rotation, Molecular Spectroscopy, Molecular Theory

Scientific paper

Four emission doublets in the millimeter-wave spectrum of IRC plus 10216 are identified as successive rotational transitions of the linear butadiynyl radical (C4H). The identifications are made on the basis of the agreement to within about 1 part in 1000 between the observed rotation constant of C4H and the value obtained from a Hartree-Fock calculation. A rough estimate of the amounts of C4H and C3N in the molecular envelope of IRC plus 10216 is given. The results indicate that C4H seems to be the more abundant species by about a factor of 4.

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