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| molecules:ism:mec3n [2019/02/25 22:38] – external edit 127.0.0.1 | molecules:ism:mec3n [2021/06/22 15:19] (current) – mueller |
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| Cyanopropyne, CH<sub>3</sub>C<sub>3</sub>N, also known as methylcyanoacetylene or methylpropionitrile, has been detected with the 45 m NRAO telescope in the //J// = 6 – 5 to 8 – 7 transitions with //K// = 0 and 1 between 27.7 and 33.1 GHz in emission toward TMC-1, by\\ | Cyanopropyne, CH<sub>3</sub>C<sub>3</sub>N, also known as methylcyanoacetylene or methylpropionitrile, has been detected with the 45 m NRAO telescope in the //J// = 6 – 5 to 8 – 7 transitions with //K// = 0 and 1 between 27.7 and 33.1 GHz in emission toward TMC-1, by\\ |
| N. W. Broten, J. M. MacLeod, L. W. Avery, W. M. Irvine, B. Höglund, P. Friberg, and Å. Hjalmarson,\\ | N. W. Broten, J. M. MacLeod, L. W. Avery, W. M. Irvine, B. Höglund, P. Friberg, and Å. Hjalmarson,\\ |
| **[[http://cdsads.u-strasbg.fr/abs/1984ApJ...276L..25B|Detection of Interstellar Methylcyanoacetylene]]**\\ | **[[https://ui.adsabs.harvard.edu/abs/1984ApJ...276L..25B|Detection of Interstellar Methylcyanoacetylene]]**\\ |
| //Astrophys. J.// **276**, L25–L29 (1984).\\ | //Astrophys. J.// **276**, L25–L29 (1984).\\ |
| In addition, the //J// = 5 – 4, //K// = 0 transition was barely detected. | In addition, the //J// = 5 – 4, //K// = 0 transition was barely detected.\\ |
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| | C. Cabezas, E. Roueff, B. Tercero, M. Agúndez, N. Marcelino, P. de Vicente, and J. Cernicharo\\ |
| | reported on the\\ |
| | **[[https://doi.org/10.1051/0004-6361/202141371|Detection of deuterated methylcyanoacetylene, CH<sub>2</sub>DC<sub>3</sub>N, in TMC-1]]**\\ |
| | //Astron. Astrophys.// **650**, Art. No. L15 (2021).\\ |
| | The molecule was identified through 15 //a//-type transitions with 7 ≤ //J// ≤ 12 and //K<sub>a</sub>// = 0 and 1 in the course of a molecular line survey of the prototypical cold dark molecular cloud TMC-1 carried out with the Yebes 40 m radio telescope between 31.0 and 50.4 GHz. A value of //T//<sub>rot</sub> = 8.0 ± 0.5 K was derived. The column density of monodeuterated methylcyanoacetylene is about a factor of 22 lower than that of the fully hydrogenated isotopolog; thus the H/D ratio per H atom is about 66.\\ |
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| Contributor(s): H. S. P. Müller; 08, 2012 | |
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| | Contributor(s): H. S. P. Müller; 08, 2012; 06, 2021 |
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