molecules:ism:cyclopropenon

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molecules:ism:cyclopropenon [2026/02/03 13:21] muellermolecules:ism:cyclopropenon [2026/02/03 14:29] (current) mueller
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 In their work on the\\ In their work on the\\
-**[[https://doi.org/10.1051/0004-6361/202557355|Discovery of Linear Propadienone — Study of the Cof linear and Cyclic H2C3O and H2C3S in TMC-1]]**\\+**[[https://doi.org/10.1051/0004-6361/202557355|Discovery of Linear Propadienone — Study of the Chemistry of Linear and Cyclic H2C3O and H2C3S in TMC-1]]**\\
 //Astron. Astrophys.// **705**, Art. No. A206 (2026),\\ //Astron. Astrophys.// **705**, Art. No. A206 (2026),\\
 G. Esplugues, J. C. Loison, M. Agúndez, G. Molpeceres, N. Marcelino, B. Tercero, and J. Cernicharo\\ G. Esplugues, J. C. Loison, M. Agúndez, G. Molpeceres, N. Marcelino, B. Tercero, and J. Cernicharo\\
-also identify isotopic species of cyclopropenone. Two //a//-type transitions were detected for the C<sub>2</sub> (ethene-type) position, c-H<sub>2</sub><sup>13</sup>CCCO, yielding a c-H<sub>2</sub>C<sub>3</sub>O to c-H<sub>2</sub><sup>13</sup>CCCO of 23 ± 9 and a <sup>12</sup>C to <sup>13</sup>C ratio of 46 ± 18 because of the two equivalent C<sub>2</sub> positions. Only one //a//-type transition had enough intensity in the case of the carbonyl C (C<sub>1</sub>), making the identification somewhat tentative. The <sup>12</sup>C to <sup>13</sup>C ratio is about 57.+also identify isotopic species of cyclopropenone. Two //a//-type transitions were detected for the C<sub>2</sub> (ethene-type) position, c-H<sub>2</sub><sup>13</sup>CCCO, yielding a c-H<sub>2</sub>C<sub>3</sub>O to c-H<sub>2</sub><sup>13</sup>CCCO of 23 ± 9 and a <sup>12</sup>C to <sup>13</sup>C ratio of 46 ± 18 because of the two equivalent C<sub>2</sub> positions. Only one //a//-type transition had enough intensity in the case of the carbonyl C (C<sub>1</sub>), making the identification somewhat tentative. The <sup>12</sup>C to <sup>13</sup>C ratio is about 57. c-HDC<sub>3</sub>O was also identified with a H to D ratio of 24 ± 10 because of the two equivalent H positions.\\ 
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