The High-Resolution Far-Infrared Torsional Spectrum of Ethane
| Autor: | J. Schroderus, Nasser Moazzen-Ahmadi, E. Kelly, Veli-Matti Horneman |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
Materials science
business.industry Resolution (electron density) Atomic and Molecular Physics and Optics Hot band symbols.namesake Optics Far infrared Position (vector) Torr symbols Physical and Theoretical Chemistry Atomic physics business Hamiltonian (quantum mechanics) Absorption (electromagnetic radiation) Spectroscopy Energy (signal processing) |
| Zdroj: | Journal of Molecular Spectroscopy. 209:228-232 |
| ISSN: | 0022-2852 |
| DOI: | 10.1006/jmsp.2001.8427 |
| Popis: | The far-infrared spectrum of gaseous CH3CH3 has been measured at a resolution of 0.0016 cm−1 using a Fourier transform spectrometer. The spectrum was recorded with an absorption pathlength of 172 m. The temperature and pressure of the sample were 294 K and 10 Torr, respectively. A total of 1072 lines in the torsional fundamental and the first torsional hot band were identified. The spectrum shows fully resolved torsion–rotation splittings. As a result, all the torsion–rotation parameters in the zeroth- and the first-order Hamiltonian were determined. We are therefore in a position to determine the torsion–rotation energy for the lowest three torsional states of ethane very accurately and to reliably predict the energy positions for the higher torsional states. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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