molecules:ism:hnc5 [CDMS classic documentation]

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===== On the Detection of Iminopentatetraenylidene, HNC5, in the ISM =====

R. Fuentetaja, C. Cabezas, Y. Endo, M. Agúndez, B. Tercero, N. Marcelino, P. de Vicente, and J. Cernicharo\\
described the\\
**[[https://doi.org/10.1051/0004-6361/202451319|Space and laboratory discovery of iminopentadienylidene, HNC5]]**\\
//Astron. Astrophys.// **688**, Art. No. L29 (2024).\\
The molecule was detected in the course of the QUIJOTE line survey of the dark cloud TMC-1 with the Yebes 40 m dish through six rotational transitions between 32.6 and 46.3 GHz having 11 ≤ //J// ≤ 17 with good to reasonable signal-to-noise ratios. A rotational tempertaure of 6.0 ± 0.5K was derived. The column density ratios are about 45 : 1 for HNC<sub>3</sub> : HNC<sub>5</sub> and about 5100 : 10 : 1 for HC<sub>5</sub>N : HC<sub>4</sub>NC : HNC<sub>5</sub>.\\
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Contributor(s): H. S. P. Müller; 08, 2024

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