Soohyun Ka, Inhee Park, J. Oh
Sep 1, 2008
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Influential Citations
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Journal
Journal of Molecular Spectroscopy
Abstract
Abstract The rotational spectrum of 4-ethylcyclohexanone in the ground vibrational state has been observed in the frequency region from 6.0 to 18.0 GHz. Transitions having a -, b -, and c -dipole selection rules were all seen. The rotational constants are A = 3660.3669(20), B = 931.6707(3) and C = 796.8889(3) MHz. The electric dipole moment was also measured to give ∣ μ a ∣ = 3.111(2) D, ∣ μ b ∣ = 0.481(6) D, ∣ μ c ∣ = 1.059(2) D, ∣ μ tot ∣ = 3.321(13) D. These rotational parameters are consistent with a chair conformation with the equatorial ethyl group and the terminal carbon staggering between the hydrogen and carbon.