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Title: The broadband rotational spectrum of fully deuterated acetaldehyde (CD3CDO) in a CW supersonic expansion

Journal Article · · Journal of Molecular Spectroscopy
 [1];  [2];  [3];  [4];  [1]
  1. Argonne National Lab. (ANL), Argonne, IL (United States). Chemical Sciences and Engineering Division
  2. Central China Normal Univ., Wuhan (China). College of Physical Science and Technology
  3. Univ. de Huelva, Huelva (Spain). Dept. Ciencias Integradas, Facultad de Ciencias Experimentales
  4. 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
Citation Metrics:
Cited by: 8 works
Citation information provided by
Web of Science

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Cited By (5)

Automated assignment of rotational spectra using artificial neural networks journal September 2018
Impact of nonconvergence and various approximations of the partition function on the molecular column densities in the interstellar medium journal July 2019
Astrophysical detections and databases for the mono deuterated species of acetaldehyde CH 2 DCOH and CH 3 COD 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