Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 391-401 |
| Seitenumfang | 11 |
| Fachzeitschrift | Chemical physics |
| Jahrgang | 208 |
| Ausgabenummer | 3 |
| Publikationsstatus | Veröffentlicht - 15 Aug. 1996 |
Abstract
The rotational spectra of 2-methyloxetane and 3-methyloxetane have been reinvestigated using Fourier transform microwave spectroscopy (FTMW). A,E splittings due to internal rotation of the methyl group have been observed in the ground and several ring-puckering and methyl torsion excited states for both molecules. Internal rotation barriers of V3 = 3.332(14) kcal mol-1 (13.941(58) kJ mol-1) for 2-methyloxetane and V3 = 3.284(12) kcal mol-1 (13.740(50) kJ mol-1) for 3-methyloxetane have been determined from the ground vibrational state spectra. Furthermore, the rotational, quartic and some higher-order centrifugal distortion constants are reported. The experimental set-up of a waveguide Fourier transform microwave spectrometer is also presented.
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Allgemeine Physik und Astronomie
- Chemie (insg.)
- Physikalische und Theoretische Chemie
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in: Chemical physics, Jahrgang 208, Nr. 3, 15.08.1996, S. 391-401.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Fourier transform microwave study on 2-methyloxetane and 3-methyloxetane
AU - Alonso, José L.
AU - Lesarri, Alberto
AU - Mata, Santiago
AU - López, Juan C.
AU - Grabow, Jens Uwe
AU - Dreizler, Helmut
N1 - Funding Information: Research funds from the Direcci6n General de Investigaci6n Cientifica y T~cnica (DGICYT, Grant PB90-0345) are gratefully acknowledged. The European Programme Human Capital and Mobility (Net- work SCAMP, Contract ERBCHRXCT930157) and the Junta de Castilla y Le6n (Grant VA19/94) are also acknowledged for financial support.
PY - 1996/8/15
Y1 - 1996/8/15
N2 - The rotational spectra of 2-methyloxetane and 3-methyloxetane have been reinvestigated using Fourier transform microwave spectroscopy (FTMW). A,E splittings due to internal rotation of the methyl group have been observed in the ground and several ring-puckering and methyl torsion excited states for both molecules. Internal rotation barriers of V3 = 3.332(14) kcal mol-1 (13.941(58) kJ mol-1) for 2-methyloxetane and V3 = 3.284(12) kcal mol-1 (13.740(50) kJ mol-1) for 3-methyloxetane have been determined from the ground vibrational state spectra. Furthermore, the rotational, quartic and some higher-order centrifugal distortion constants are reported. The experimental set-up of a waveguide Fourier transform microwave spectrometer is also presented.
AB - The rotational spectra of 2-methyloxetane and 3-methyloxetane have been reinvestigated using Fourier transform microwave spectroscopy (FTMW). A,E splittings due to internal rotation of the methyl group have been observed in the ground and several ring-puckering and methyl torsion excited states for both molecules. Internal rotation barriers of V3 = 3.332(14) kcal mol-1 (13.941(58) kJ mol-1) for 2-methyloxetane and V3 = 3.284(12) kcal mol-1 (13.740(50) kJ mol-1) for 3-methyloxetane have been determined from the ground vibrational state spectra. Furthermore, the rotational, quartic and some higher-order centrifugal distortion constants are reported. The experimental set-up of a waveguide Fourier transform microwave spectrometer is also presented.
UR - http://www.scopus.com/inward/record.url?scp=0030586465&partnerID=8YFLogxK
U2 - 10.1016/0301-0104(96)00090-0
DO - 10.1016/0301-0104(96)00090-0
M3 - Article
AN - SCOPUS:0030586465
VL - 208
SP - 391
EP - 401
JO - Chemical physics
JF - Chemical physics
SN - 0301-0104
IS - 3
ER -