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On Oxygen-terminated Carbon Chain Molecules CnO in Space
Oxoethenylidene, C<sub>2</sub>O
CCO has been detected first toward TMC-1:
M. Ohishi, H. Suzuki, S.-I. Ishikawa, C. Yamada, H. Kanamori, W. M. Irvine, R. D. Brown, P. D. Godfrey, N. Kaifu,
Detection of a new carbon-chain molecule, CCO
Astrophys. J. 380, L39–L42 (1991).
The NJ = 12 – 01 and 23 – 12 transitions were detected with the 43 m Green Bank telescope and the 45 m Nobeyama telecope, respectively, at 22258 and 45827 MHz.
R. G. Urso, M. E. Palumbo, C. Ceccarelli, N. Balucani, S. Bottinelli, C. Codella, F. Fontani, P. Leto, C. Trigilio, C. Vastel, R. Bachiller, G. A. Baratta, C. S. Buemi, E. Caux, A. Jaber Al-Edhari, B. Lefloch, A. López-Sepulcre, G. Umana, and L. Testi
report on
C<sub>2</sub>O and C<sub>3</sub>O in low-mass star-forming regions
Astron. Astrophys. 628, Art. No. A72 (2019).
Oxopropadienylidene, C<sub>3</sub>O
Oxopentatetraenylidene, C<sub>5</sub>O
Contributor(s): H. S. P. Müller; 12, 2003; 09, 2012; 12, 2021