The submillimeter spectrum of the ground hydroxyl torsional state of ethyl alcohol (CH{sub 3}CH{sub 2}OH)

Conference · Tue Dec 31 04:00:00 EST 1996

OSTI ID:437211

Pearson, J C ^[1]; Sastry, K V.L.N. ^[2]; Herbst, E; De Lucia, F C ^[3]

---

1. California Institute of Technology, Pasadena, CA (United States)
2. Univ. of New Brunswick, Fredericton (Canada)
3. Ohio State Univ., Columbus, OH (United States)

The ground state spectrum of the three torsional sub-states (trans, guanche+ and gauche-) of the asymmetric internal hydroxyl rotation in ethyl alcohol has been recorded through 652 GHz. Previous trans and gauche work has been expanded to include approximately 3000 assigned transitions through J=40 and K{sub a}=17 including approximately 1000 which show significant deviation from a standard asymmetric rotor pattern due to trans-gauche interactions. The location of these interactions has enabled the determination of the trans-gauche energy difference accurately. The application of a fixed-frame-axis method (FFAM) Hamiltonian to this asymmetric top-asymmetric frame internal rotation problem is discussed. The results of a three-state FFAM analysis are presented.

• OSTI ID: 437211
• Report Number(s): CONF-9606118--
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
ETHANOL
GROUND STATES
MATHEMATICAL MODELS
ROTATIONAL STATES