Detection of a heavy radical in IRC + 10216 - The hexatriynyl radical C6H?

Details Detection of a heavy radical in IRC + 10216 - The hexatriynyl radical C6H? Detection of a heavy radical in IRC + 10216 - The hexatriynyl radical C6H?

Mar 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...175l...5g&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 175, no. 1-2, March 1987, p. L5-L8.

Astronomy and Astrophysics

Astrophysics

40

Free Radicals, Hydrocarbons, Interstellar Matter, Millimeter Waves, Molecular Ions, Radio Spectra, Interstellar Chemistry, Molecular Clouds, Molecular Spectra, Stellar Envelopes

Scientific paper

Six line doublets and two related lines, discovered with the IRAM 30 m telescope in the millimetre-wave spectrum of IRC +10216, are identified as the J = 26.5→25.5 and J = 29.5→28.5 through 35.5→34.5 rotational transitions of a new "non terrestrial" molecule in a 2Π state. The new radical has an effective rotation constant of 1386.245 MHz and is thought to contain 5 - 6 heavy atoms. It is observed at centimetre wavelengths in TMC1, a cold interstellar cloud, known to be rich in carbon chain molecules. The authors identify it with C6H.

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