Laboratory detection of a second carbon chain carbene - Butatrienylidene, H2CCCC

Details Laboratory detection of a second carbon chain carbene - Butatrienylidene, H2CCCC Laboratory detection of a second carbon chain carbene - Butatrienylidene, H2CCCC

Dec 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...365l..89k&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 365, Dec. 20, 1990, p. L89-L92.

Astronomy and Astrophysics

Astrophysics

26

Astronomical Spectroscopy, Hydrocarbons, Interstellar Chemistry, Interstellar Matter, Line Spectra, Dipole Moments, Microwave Spectra, Rotational Spectra

Scientific paper

From laboratory measurement of 45 lines in its rotational spectrum, butatrienylidene, H2C4, has been identified, the second carbene with a known microwave spectrum in the sequence formed by the addition of successive carbon atoms to a linear cumulene backbone. With a dipole moment computed to be high (4.5 D), H2C4 is a good candidate for interstellar and circumstellar detection. This paper presents a determination of the rotational and leading centrifugal distortion constants and a tabulation of possible astronomical lines in the radio and far-IR.

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