The broadband rotational spectrum of fully deuterated acetaldehyde (CD3CDO) in a CW supersonic expansion
- Argonne National Lab. (ANL), Argonne, IL (United States). Chemical Sciences and Engineering Division
- Central China Normal Univ., Wuhan (China). College of Physical Science and Technology
- Univ. de Huelva, Huelva (Spain). Dept. Ciencias Integradas, Facultad de Ciencias Experimentales
- Universites Paris Est & Paris Diderot, Creteil cedex (France). Laboratoire Interuniversitaire des Systemes Atmospheriques (LISA)
The broadband pure rotational spectra of CD3CDO, 13CD3CDO, CD3 13CDO, and CD3CD18O have been recorded using a BrightSpec W-Band (75–110 GHz) chirped-pulse Fourier transform millimeter wave (CP-FTmmW) spectrometer. The sample was enriched with deuterium, whereas the 13C and 18O isotopologues were observed in natural abundance (with respect to the enriched fully deuterated parent containing 12C and 16O). The analysis of the spectra is described and the derived molecular constants are compared to those of known acetaldehyde isotopologues. Furthermore, we have demonstrated the ability to record rotational spectra in a steady-state “CW” supersonic expansion with a duty cycle of 80%. Finally, the advantages and limitations of the segmented chirp spectrometer coupled with a CW molecular source as well as design of the vacuum and pumping system are discussed.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences, and Biosciences Division; National Natural Science Foundation of China (NSFC); Spanish Ministerio de Economia y Competitividad (MINECO)
- Grant/Contract Number:
- AC02-06CH11357; 11574107
- OSTI ID:
- 1427542
- Alternate ID(s):
- OSTI ID: 1495570
- Journal Information:
- Journal of Molecular Spectroscopy, Vol. 342, Issue C; ISSN 0022-2852
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Automated assignment of rotational spectra using artificial neural networks
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journal | September 2018 |
Impact of nonconvergence and various approximations of the partition function on the molecular column densities in the interstellar medium
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journal | July 2019 |
Astrophysical detections and databases for the mono deuterated species of acetaldehyde CH 2 DCOH and CH 3 COD
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journal | April 2019 |
Automated Assignment of Rotational Spectra Using Artificial Neural Networks
|
conference | June 2018 |
Impact of nonconvergence and various approximations of the partition function on the molecular column densities in the interstellar medium | text | January 2019 |
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