| DOI | Resolve DOI: https://doi.org/10.1063/1.3555629 |
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| Author | Search for: Oliaee, J.N.; Search for: Dehghany, M.; Search for: Moazzen-Ahmadi, N.; Search for: McKellar, A.R.W.1 |
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| Affiliation | - National Research Council of Canada. NRC Steacie Institute for Molecular Sciences
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| Format | Text, Article |
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| Subject | 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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| Abstract | 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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| Publication date | 2011 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21271534 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 4be6e402-be79-46c2-8dc7-c26b74515814 |
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| Record created | 2014-03-24 |
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| Record modified | 2020-04-21 |
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