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Electron-impact spectroscopy of acetaldehyde

Walzl, K. N. and Koerting, C. F. and Kuppermann, A. (1987) Electron-impact spectroscopy of acetaldehyde. Journal of Chemical Physics, 87 (7). pp. 3796-3803. ISSN 0021-9606. doi:10.1063/1.452935.

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Acetaldehyde has been studied by the technique of low‐energy variable‐angle electron energy‐loss spectroscopy. With this method the low‐lying spin‐forbidden transitions have been located via the behavior of the relative differential cross sections, providing the first identification by this technique of such states in acetaldehyde. High‐lying states were also investigated and some assignments of dipole symmetry‐forbidden/quadrupole symmetry‐allowed excitations were made on the basis of characteristic angular behavior, evident for the asymmetric molecule acetaldehyde just as for the symmetric molecules formaldehyde and acetone. Through a comparison of the acetaldehyde results with those for formaldehyde and acetone the trends in the allowed and forbidden transition energies were examined as a function of methyl substitution and found to be relatively linear.

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Additional Information:© 1987 American Institute of Physics. Received 10 December 1986; accepted 24 December 1986. This work was supported in part by the U.S. Department of Energy, Contract No. DE-AM03-76F00767, Project Agreement No. DE-AT03-76ER72004.
Funding AgencyGrant Number
Department of Energy (DOE)DE-AM03-76F00767
Department of Energy (DOE)DE-AT03-76ER72004
Subject Keywords:acetaldehyde; electron−molecule collisions; forbidden transitions; excitation; energy−level transitions; rydberg states; formaldehyde; acetone
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Other Numbering System NameOther Numbering System ID
Caltech Arthur Amos Noyes Laboratory of Chemical Physics7457
Issue or Number:7
Classification Code:PACS: 34.80.Gs
Record Number:CaltechAUTHORS:20120621-161808592
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Official Citation:Electron-impact spectroscopy of acetaldehyde K. N. Walzl, C. F. Koerting, and A. Kuppermann, J. Chem. Phys. 87, 3796 (1987), DOI:10.1063/1.452935
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:32019
Deposited On:22 Jun 2012 21:33
Last Modified:09 Nov 2021 20:03

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