| DOI | Trouver le DOI : https://doi.org/10.1063/1.476818 |
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| Auteur | Rechercher : Brown, L. A.1; Rechercher : Rayner, D. M.2 |
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| Affiliation | - Conseil national de recherches du Canada. Thérapeutique en santé humaine
- Conseil national de recherches du Canada. Technologies de sécurité et de rupture
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| Format | Texte, Article |
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| Sujet | silver; photochemistry; surface photochemistry; desorption; adsorbates |
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| Résumé | The photochemistry of carbonyl sulfide (OCS) adsorbed to small silverclusters is shown to exhibit a striking odd–even dependence on the number of Ag atoms in the cluster. OCS is found to desorb nondissociatively from even numbered silverclusters. In contrast, on odd silverclusters, a new product channel corresponding to AgₙS is observed. Parallels are found with the photochemistry of adsorbates on extended surfaces. Cross-section measurements for OCS desorption from Ag₁₀ and wavelength-dependent measurements of OCS dissociation on Ag₉ both indicate that electronic excitation of the cluster initiates chemistry, analogous to substrate mediated surface photochemistry. The size dependence is reasonably explained in terms of a charge-transfer mechanism involving an ion-pair state of the AgₙOCS complex. |
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| Date de publication | 1998-05-04 |
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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 | 21277564 |
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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 | 40bafb55-f87b-422e-8300-32f0c74509b0 |
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| Enregistrement créé | 2016-04-19 |
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| Enregistrement modifié | 2020-03-20 |
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