| Autre titre | Intermolecular vibrational states far above the van der Waals minimum: combination bands of the polar N2O dimer |
|---|
| DOI | Trouver le DOI : https://doi.org/10.1016/j.jms.2021.111428 |
|---|
| Auteur | Rechercher : Mckellar, A.R.W.1; Rechercher : Moazzen-Ahmadi |
|---|
| Affiliation | - Conseil national de recherches du Canada. Technologies de sécurité et de rupture
|
|---|
| Format | Texte, Article |
|---|
| Sujet | nitrous oxide; spectrum; dimer; van der Waals; infrared; supersonic jet; intermolecular vibration |
|---|
| Résumé | Infrared combination bands of the polar isomer of the N₂O dimer are observed for the first time, using a tunable infrared laser source to probe a pulsed slit-jet supersonic expansion in the N₂O ν₁ region (≈2240 cm⁻¹). One band involves the torsional (out-of-plane) intermolecular mode and yields a torsional frequency of 19.83 cm⁻¹ if associated with the out-of-phase fundamental (N₂O ν₁) vibration of the N₂O monomers in the dimer. The other band, which is highly perturbed, yields an intermolecular in-plane geared bend frequency of 22.74 cm⁻¹. The results are compared with high level ab initio calculations. The less likely alternate assignment to the in-phase fundamental would give torsional and geared bend frequencies of 17.25 and 20.16 cm⁻¹, respectively. |
|---|
| Date de publication | 2021-02-06 |
|---|
| Maison d’édition | Elsevier |
|---|
| Dans | |
|---|
| 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 | 28c066d8-3529-456e-9f9a-982bad7931a1 |
|---|
| Enregistrement créé | 2021-06-29 |
|---|
| Enregistrement modifié | 2021-06-30 |
|---|
