Spectra of Rg-water dimers in the region of the D₂Oν₃ asymmetric stretch (Rg = Ar, Kr, Xe)

DOI	Trouver le DOI : https://doi.org/10.1080/00268976.2023.2259012
Auteur	Rechercher : Glorieux, R.; Rechercher : Barclay, A. J.; Rechercher : Lauzin, C.Identifiant ORCID : https://orcid.org/0000-0001-5044-5137; Rechercher : McKellar, A. R. W.¹Identifiant ORCID : https://orcid.org/0000-0001-5409-2690; Rechercher : Moazzen-Ahmadi, N.Identifiant ORCID : https://orcid.org/0000-0001-8307-3480
Affiliation	Conseil national de recherches Canada. Quantique et nanotechnologies
Bailleur de fonds	Rechercher : Natural Sciences and Engineering Research Council of Canada; Rechercher : Fonds de la Recherche Scientifique
Format	Texte, Article
Sujet	infrared; optical parametric oscillator; spectra; vibrational bands; water rare gas clusters; inert gases; isotopes; supersonic aerodynamics
Résumé	Spectra of rare gas (Rg) – D₂O dimers (Rg = Ar, Kr, Xe) are studied in the region of the D₂Oν₃ asymmetric stretch (≈2800 cm⁻¹), using a rapid-scan tunable infrared optical parametric oscillator source to probe a pulsed supersonic slit jet expansion. Three bands are observed in each case, labelled according to the D₂O rotational transition with which they correlate as: Σ(1₀₁) ← Σ(0₀₀), Π(101) ← Σ(0₀₀), and Σ(0₀₀) ← Σ(1₀₁). The Ar-D₂O bands exhibit various perturbations and line broadening effects. For Kr-D₂O, the Π(101) ← Σ(0₀₀) and Σ(0₀₀) ← Σ(1₀₁) bands are simple and relatively unperturbed with almost no resolved Kr isotope structure, while the Σ(1₀₁) ← Σ(0₀₀) band is highly perturbed and shows large isotope splittings. This latter perturbation is analyzed in detail with good results. For Xe-D₂O, the experimental spectra are unfortunately weaker. Analysis of the Π(101) ← Σ(0₀₀) and Σ(0₀₀) ← Σ(1₀₁) bands is again relatively straightforward, but the Σ(1₀₁) ← Σ(0₀₀) band is even more perturbed than for Kr-D₂O and its analysis proves impossible. Line broadening (for Ar-D₂O) and vibrational frequency shift effects are described.
Date de publication	2023-09-18
Maison d’édition	Taylor & Francis
Dans	Molecular Physics 122, nº 5, e2259012 (3 mars 2024).
Langue	anglais
Publications évaluées par des pairs	Oui
Exporter la notice	Exporter en format RIS
Signaler une correction	Signaler une correction (s'ouvre dans un nouvel onglet)
Identificateur de l’enregistrement	6f3339ca-ceac-47e0-af3d-100ea8cd159c
Enregistrement créé	2024-12-09
Enregistrement modifié	2024-12-09

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