molecules:ism:etcn

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molecules:ism:etcn [2022/03/17 09:39] – muellermolecules:ism:etcn [2026/08/25 10:38] (current) – mueller
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 **[[https://ui.adsabs.harvard.edu/abs/1977ApJ...218..370J|Detection of Interstellar Ethyl Cyanide]]**\\ **[[https://ui.adsabs.harvard.edu/abs/1977ApJ...218..370J|Detection of Interstellar Ethyl Cyanide]]**\\
 //Astrophys. J.// **218**, L370–L376 (1977).\\ //Astrophys. J.// **218**, L370–L376 (1977).\\
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 More recently, however, it has also been detected toward a low-mass star-forming region:\\ More recently, however, it has also been detected toward a low-mass star-forming region:\\
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 **[[https://doi.org/10.1086/378038|The Hot Core around the Low-mass Protostar IRAS 16293-2422: Scoundrels Rule!]]**\\ **[[https://doi.org/10.1086/378038|The Hot Core around the Low-mass Protostar IRAS 16293-2422: Scoundrels Rule!]]**\\
 //Astrophys. J.// **593**, L51–L55 (2003).\\ //Astrophys. J.// **593**, L51–L55 (2003).\\
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 Ethyl cyanide in its two lowest vibrational states //v//<sub>13</sub> ≡ //v//<sub>b</sub> = 1 (in plane CCN bend; ca. 206.5 cm<sup>–1</sup>) and //v//<sub>21</sub> ≡ //v//<sub>t</sub> = 1 (torsion; ca. 212.7 cm<sup>–1</sup>) has been detected in a 3, 2, and 1 mm line survey carried out with SEST:\\ Ethyl cyanide in its two lowest vibrational states //v//<sub>13</sub> ≡ //v//<sub>b</sub> = 1 (in plane CCN bend; ca. 206.5 cm<sup>–1</sup>) and //v//<sub>21</sub> ≡ //v//<sub>t</sub> = 1 (torsion; ca. 212.7 cm<sup>–1</sup>) has been detected in a 3, 2, and 1 mm line survey carried out with SEST:\\
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 **[[https://doi.org/10.1086/386357|Detection of Vibrationally Excited Ethyl Cyanide in the Interstellar Medium]]**\\ **[[https://doi.org/10.1086/386357|Detection of Vibrationally Excited Ethyl Cyanide in the Interstellar Medium]]**\\
 //Astrophys. J.// **608**, 306–313 (2004).\\ //Astrophys. J.// **608**, 306–313 (2004).\\
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 These states as well as higher vibrational states up to v<sub>12</sub> = 1 at 770 K were detected toward Orion KL by\\ These states as well as higher vibrational states up to v<sub>12</sub> = 1 at 770 K were detected toward Orion KL by\\
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 **[[https://doi.org/10.1051/0004-6361/201321096|Complex Organic Molecules in the Interstellar Medium: IRAM 30 m Line Survey of Sagittarius B2(N) and (M)]]**\\ **[[https://doi.org/10.1051/0004-6361/201321096|Complex Organic Molecules in the Interstellar Medium: IRAM 30 m Line Survey of Sagittarius B2(N) and (M)]]**\\
 //Astron. Astrophys.// **559**, Art. No. A47 (2013).\\ //Astron. Astrophys.// **559**, Art. No. A47 (2013).\\
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 The three <sup>13</sup>C isotopic species have been reported first in observations toward Orion IRc2 by\\ The three <sup>13</sup>C isotopic species have been reported first in observations toward Orion IRc2 by\\
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 **[[https://doi.org/10.1016/j.jms.2008.03.016|Rotational Spectroscopy of Isotopic Vinyl Cyanide, H<sub>2</sub>C=CH–C≡N, in the Laboratory and in Space]]**,\\ **[[https://doi.org/10.1016/j.jms.2008.03.016|Rotational Spectroscopy of Isotopic Vinyl Cyanide, H<sub>2</sub>C=CH–C≡N, in the Laboratory and in Space]]**,\\
 //J. Mol. Spectrosc.// **250**, 319–325 (2008).\\ //J. Mol. Spectrosc.// **250**, 319–325 (2008).\\
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 The detection of the <sup>15</sup>N isotopolog (in Orion KL) was reported first by\\ The detection of the <sup>15</sup>N isotopolog (in Orion KL) was reported first by\\
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 A. Belloche, H. S. P. Müller, R. T. Garrod, and K. M. Menten,\\ A. Belloche, H. S. P. Müller, R. T. Garrod, and K. M. Menten,\\
 **[[https://doi.org/10.1051/0004-6361/201527268|Exploring Molecular Complexity with ALMA (EMoCA): Deuterated Complex Organic Molecules in Sagittarius B2(N2)]]**\\ **[[https://doi.org/10.1051/0004-6361/201527268|Exploring Molecular Complexity with ALMA (EMoCA): Deuterated Complex Organic Molecules in Sagittarius B2(N2)]]**\\
-//Astron. Astrophys.// **587**, Art. No. A91 (2016).+//Astron. Astrophys.// **587**, Art. No. A91 (2016).\\ 
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 A. Belloche, H. S. P. Müller, R. T. Garrod, and K. M. Menten\\ A. Belloche, H. S. P. Müller, R. T. Garrod, and K. M. Menten\\
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 **[[https://doi.org/10.1051/0004-6361/201527268|Exploring Molecular Complexity with ALMA (EMoCA): Deuterated Complex Organic Molecules in Sagittarius B2(N2)]]**\\ **[[https://doi.org/10.1051/0004-6361/201527268|Exploring Molecular Complexity with ALMA (EMoCA): Deuterated Complex Organic Molecules in Sagittarius B2(N2)]]**\\
 //Astron. Astrophys.// **587**, Art. No. A91 (2016).\\ //Astron. Astrophys.// **587**, Art. No. A91 (2016).\\
-They report the tentative detection of deuterated ethyl cyanide in the course of their 3 mm line survey with ALMA. Their ratios of the normal species to the one deuterated at the out-of-plane methyl group position and at the methylene group are about 2000, the upper limit to the one deuterate at the in-plane methyl group position is 4000, consistent with the other positions which occur twice each. The number of clean lines was so small that the authors refrained from claiming a firm detection.+They report the tentative detection of deuterated ethyl cyanide in the course of their 3 mm line survey with ALMA. Their ratios of the normal species to the one deuterated at the out-of-plane methyl group position and at the methylene group are about 2000, the upper limit to the one deuterate at the in-plane methyl group position is 4000, consistent with the other positions which occur twice each. The number of clean lines was so small that the authors refrained from claiming a firm detection.\\ 
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 L. Margulès, A. Belloche, H. S. P. Müller, R. A. Motiyenko, J.-C. Guillemin, R. T. Garrod, and K. M. Menten,\\ L. Margulès, A. Belloche, H. S. P. Müller, R. A. Motiyenko, J.-C. Guillemin, R. T. Garrod, and K. M. Menten,\\
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 **[[https://doi.org/10.1051/0004-6361/201628309|Spectroscopic Study and Astronomical Detection of Doubly <sup>13</sup>C-Substituted Ethyl Cyanide]]**\\ **[[https://doi.org/10.1051/0004-6361/201628309|Spectroscopic Study and Astronomical Detection of Doubly <sup>13</sup>C-Substituted Ethyl Cyanide]]**\\
 //Astron. Astrophys.// **590**, Art. No. A93 (2016).\\ //Astron. Astrophys.// **590**, Art. No. A93 (2016).\\
-The astronomical detection was made in Sagittarius B2(N2) in the course of their 3 mm line survey with ALMA. +The astronomical detection was made in Sagittarius B2(N2) in the course of their 3 mm line survey with ALMA.\\ 
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