molecules:ism:methylformiat

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molecules:ism:methylformiat [2019/03/14 11:39] – update from Holger adminmolecules:ism:methylformiat [2019/03/14 15:55] – mueller
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 Their Orion KL molecular line survey carried out with the IRAM 30 m telescope was used once more to search for the methyl-deuterated isotopolog. The D to H ratio of 0.02 to 0.06 in the compact ridge part of the source is not unusual, but is three times lower per H atom than the tentatively derived value for the acid-deuterated isotopolog. Their Orion KL molecular line survey carried out with the IRAM 30 m telescope was used once more to search for the methyl-deuterated isotopolog. The D to H ratio of 0.02 to 0.06 in the compact ridge part of the source is not unusual, but is three times lower per H atom than the tentatively derived value for the acid-deuterated isotopolog.
  
-S. Manigand, H. Calcutt, J. K. JÞrgensen, V. Taquet, H. S. P. MÃŒller, A. Coutens, S. F. Wampfler, N. Ligterink, M. N. Drozdovskaya, L. E. Kristensen, M. H. D. van der Wiel, and T. L. Bourke,\\+S. Manigand, H. Calcutt, J. K. Jørgensen, V. Taquet, H. S. P. Müller, A. Coutens, S. F. Wampfler, N. Ligterink, M. N. Drozdovskaya, L. E. Kristensen, M. H. D. van der Wiel, and T. L. Bourke,\\
 reported on\\ reported on\\
 **[[https://doi.org/10.1051/0004-6361/201832844|The ALMA-PILS Survey: The First Detection of Doubly-deuterated Methyl Formate (CHD<sub>2</sub>OCHO) in the ISM]]**\\ **[[https://doi.org/10.1051/0004-6361/201832844|The ALMA-PILS Survey: The First Detection of Doubly-deuterated Methyl Formate (CHD<sub>2</sub>OCHO) in the ISM]]**\\
 //Astron. Astrophys.// **623** (2019) Art. No. A69.\\ //Astron. Astrophys.// **623** (2019) Art. No. A69.\\
-The isotopolog was detected to source B as well as to source A. The deuteration per H atom is about 12 and 8 %, respectively, considerably higher than about 6 and 28 %, respectively, for the singly deuterated isotopomers.+The isotopolog was detected toward source B as well as toward source A. The deuteration per H atom is about 12 and 8 %, respectively, considerably higher than about 6 and 28 %, respectively, for the singly deuterated isotopomers.
  
 The so-called //trans// conformer, with the carbonyl oxygen pointing away from the methyl group, is very much higher (about 25 kJ/mol or about 3000 K) in energy than the so-called //cis// conformer. Nevertheless, it has been characterized in the laboratory recently and was detected tentatively in the cooler, probably more diffuse parts of Sagittarius B2(N) where the chemistry deviates significantly from LTE. The work has been described by\\ The so-called //trans// conformer, with the carbonyl oxygen pointing away from the methyl group, is very much higher (about 25 kJ/mol or about 3000 K) in energy than the so-called //cis// conformer. Nevertheless, it has been characterized in the laboratory recently and was detected tentatively in the cooler, probably more diffuse parts of Sagittarius B2(N) where the chemistry deviates significantly from LTE. The work has been described by\\
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 Contributor(s): H. S. P. Müller; 02, 2007; 04, 2011; 07, 2012; 08, 2012; 11, 2016; 03, 2019 Contributor(s): H. S. P. Müller; 02, 2007; 04, 2011; 07, 2012; 08, 2012; 11, 2016; 03, 2019
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  • molecules/ism/methylformiat.txt
  • Last modified: 2019/10/24 09:38
  • by mueller