New Spectral Characterization of Dimethyl Ether Isotopologues CH3OCH3 and 13CH3OCH3 in the THz Region

• Published in: The Astrophysical journal. Supplement series Vol. 241; no. 1
• Main Authors: Fernández, J. M., Tejeda, G., Carvajal, M., Senent, M. L.
• Format: Journal Article
• Language: English
• Published: Saskatoon The American Astronomical Society 01.03.2019; IOP Publishing
• Subjects: astrochemistry; Dimethyl ether; ISM: lines and bands; ISM: molecules; methods: laboratory: molecular; molecular data; Raman spectra; Room temperature; Rotational spectra; Star formation; techniques: spectroscopic

The torsional Raman spectra of two astrophysically detected isotopologues of dimethyl ether (DME, 12CH3O12CH3 and 13CH3O12CH3) have been recorded at room temperature and cooled in a supersonic jet and interpreted with the help of highly correlated ab initio calculations. DME displays excited torsion...