| DOI | Resolve DOI: https://doi.org/10.1016/j.jms.2021.111551 |
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| Author | Search for: Gergess, C.; Search for: Dehghany, M.; Search for: Michaelian, K. H.; Search for: Mckellar, A. R. W.1; Search for: Moazzenahmadi, N. |
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| Affiliation | - National Research Council of Canada. Security and Disruptive Technologies
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| Format | Text, Article |
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| Subject | rotationally-resolved infrared spectra of N₂O-Ar and N₂O-Kr; symmetry breaking of the N₂O bending mode; van der Waals; Coriolis interaction; Coriolis interaction |
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| Abstract | Rotationally-resolved infrared spectra of N₂O–Ar and N₂O–Kr are studied in the region of the N₂O ν₁ vibration (≈2224 cm⁻¹) using a tunable Quantum Cascade laser source to probe a pulsed supersonic jet. The N₂O–Kr ν₁ fundamental band is re-analyzed, together with previous ν₃ band data, using a unified scheme to fit the (small) observed Kr isotope splittings. This scheme is then transferred to analyze the bending combination band of N₂O–Kr near 2257 cm⁻¹ where isotope effects are much larger due to stretch-bend interactions. As a result, N₂O–Kr intermolecular bend (33.29 cm⁻¹) and stretch (34.48 cm⁻¹) frequencies are directly determined for the first time. Weak spectra are detected for both N₂O–Ar and –Kr corresponding to the (ν₁, ν₂ˡ², ν₃) = (11¹0) ← (01¹0) hot band of N₂O. Their analysis yields the magnitude of the splitting of the N₂O ν₂ bending mode into in-plane and out-of-plane components. These splittings are found to be significantly smaller than those observed in the analogous CO₂-containing dimers. |
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| Publication date | 2021-11-26 |
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| Publisher | Elsevier |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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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 | 0b3d1113-da61-44ce-addb-06f0f43a19c5 |
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| Record created | 2022-02-18 |
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| Record modified | 2022-02-22 |
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