Millimeter and submillimeter wave spectroscopy of higher energy conformers of 1,2-propanediol
| Autor: | J.-B. Bossa, Frank Lewen, Olena Zakharenko, Holger S. P. Müller, Stephan Schlemmer |
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| Rok vydání: | 2017 |
| Předmět: |
Angular momentum
Materials science Astrophysics::Cosmology and Extragalactic Astrophysics Molecular physics 01 natural sciences Propanediol Radio telescope symbols.namesake Optics 0103 physical sciences Physical and Theoretical Chemistry Spectroscopy 010303 astronomy & astrophysics Conformational isomerism Physics 010304 chemical physics business.industry Atomic and Molecular Physics and Optics Wavelength symbols Millimeter Atomic physics business Hamiltonian (quantum mechanics) Energy (signal processing) Microwave Submillimeter wave |
| Zdroj: | Journal of Molecular Spectroscopy. 333:23-26 |
| ISSN: | 0022-2852 |
| DOI: | 10.1016/j.jms.2017.01.006 |
| Popis: | We have performed a study of the millimeter/submillimeter wave spectrum of four higher energy conformers of 1,2-propanediol. The present analysis of rotational transitions carried out in the frequency range 38–400 GHz represents a significant extension of previous microwave work. The new data were combined with previously-measured microwave transitions and fitted using a Watson’s S -reduced Hamiltonian. The final fits were within experimental accuracy, and included spectroscopic parameters up to sixth order of angular momentum, for the ground states of the four higher energy conformers following previously studied ones: g ′ Ga , gG ′ g ′, aGg ′ and g ′ Gg . The present analysis provides reliable frequency predictions for astrophysical detection of 1,2-propanediol by radio telescope arrays at millimeter wavelengths. |
| Databáze: | OpenAIRE |
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