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초록
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 elec tric dipole moment was also measured to give vertical bar mu(a)vertical bar = 3.111(2)D, vertical bar mu(b)vertical bar = 0.481(6) D, vertical bar mu(c)vertical bar = 1.059(2) D, vertical bar mu(tot)vertical bar = 3.321(13) D. These rotational parameters are consistent chair conformation with the equatorial ethyl group and the terminal carbon staggering between the hydrogen and carbon. (C) 2008 Elsevier Inc. All rights reserved.
키워드
4-ethylcyclohexanone; rotational spectrum; microwave; dipole selection rules; chair conformation; equatorial group; axial conformer; Ab initio; MULTIPHOTON IONIZATION SPECTROSCOPY; ELECTRON-DIFFRACTION; DIPOLE-MOMENT; CYCLOHEXANONE; 2-METHYLCYCLOHEXANONE; CONFORMATION; ARGON
- 제목
- Microwave spectrum of 4-ethylcyclohexanone
- 저자
- Ka, Soohyun; Park, Inhee; Oh, Jung Jin
- 발행일
- 2008-09
- 유형
- Article
- 권
- 251
- 호
- 1-2
- 페이지
- 374 ~ 377