Differences

This shows you the differences between two versions of the page.

--- molecules:ism:oxiran [2023/06/09 11:15] – mueller
+++ molecules:ism:oxiran [2023/06/09 13:56] (current) – mueller
@@ Line 46: / Line 46: @@
 **[[https://doi.org/10.1093/mnras/stac2525|Rotational Spectroscopy of Oxirane-//2,2-d//<sub>2</sub> (//c//-CD<sub>2</sub>CH<sub>2</sub>O) and Its Tentative Detection Toward IRAS 16293−2422 B]]**\\
 //J. Mol. Spectrosc.// **394**, Art. No. 111777 (2023).\\
-...
+As in the case of the mono-deuterated oxirane above, lines were identifies in the PILS data.
+Five or six lines are essentially unblended and have a sufficient signal-to-noise ratio,
+two more lines are blended, and the combination of the contributions account nicely for the emission lines.
+So the identification was deemed to be somewhat tentative in this line-rich survey.
+From the estimate of the column density, one can derive a degree of deuteration per H atom of ~0.16,
+compared to ~0.036 per H atom in the case of //c//-C<sub>2</sub>H<sub>3</sub>DO.
+Such an enhancement of the degree of deuteration per H atom has also been seen for other
+doubly deuterated molecules compared to their mono-deuerated variants, such as CHD<sub>2</sub>CN,
+CHD<sub>2</sub>OCHO, CH<sub>3</sub>OCHD<sub>2</sub>, CHD<sub>2</sub>OH, and CHD<sub>2</sub>CHO.\\
+\\
 ----