The rotational spectrum of acetone: Internal rotation and centrifugal distortion analysis |
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| Affiliation: | 2. Department of Chemistry, University of Alberta, Edmonton, AB, Canada;3. Department of Physics, University of California Santa Barbara, Santa Barbara, CA, United States;4. Max Planck Institute for the Structure and Dynamics of Matter, Hamburg, Germany |
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| Abstract: | In the rotational spectrum of acetone, 52 new quartets (up to 300 GHz, J≤30) have been measured. Because the barrier hindering internal rotation is low (s = 21), a new computer program based on the Internal Axis Method has been developed. It has allowed us to satisfactorily fit the spectrum and to accurately determine the rotational constants, centrifugal distortion constants, and the three internal rotation parameters. |
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