| DOI | Trouver le DOI : https://doi.org/10.1063/1.3555629 |
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| Auteur | Rechercher : Oliaee, J.N.; Rechercher : Dehghany, M.; Rechercher : Moazzen-Ahmadi, N.; Rechercher : McKellar, A.R.W.1 |
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| Affiliation | - Conseil national de recherches du Canada. Institut Steacie des sciences moléculaires du CNRC
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| Format | Texte, Article |
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| Sujet | fundamental bands; infrared spectrum; isotopic substitution; nitrous oxide; non-polar; pulsed supersonic jet expansions; symmetric rotors; tetramers; tunable diode lasers; anesthetics; nitrogen oxides; oligomers; rotors; spectroscopy; supersonic aerodynamics; isomers |
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| Résumé | Infrared spectra of the nitrous oxide tetramer, (N 2O) 4, are studied in the region of the N 2O 1 fundamental band (∼2200 cm -1). The spectra are observed using a tunable diode laser to probe a pulsed supersonic jet expansion. Parallel (ΔK = 0) bands are observed for the previously observed isomer of (N 2O) 4, which is confirmed by isotopic substitution to have an oblate symmetric rotor structure with D 2d symmetry. A distinct new isomer of (N 2O) 4 is observed by means of a perpendicular (ΔK = ±1) band. It has a prolate symmetric rotor structure with S 4 symmetry. These isomers represent two distinct, but almost equally favorable, ways of bringing together a pair of nonpolar N 2O dimers to form a tetramer. It is not clear at present which one represents the true ground state. © 2011 American Institute of Physics. |
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| Date de publication | 2011 |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro NPARC | 21271534 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 4be6e402-be79-46c2-8dc7-c26b74515814 |
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| Enregistrement créé | 2014-03-24 |
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| Enregistrement modifié | 2020-04-21 |
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