Journal article
Infrared photoionization of neutral tantalum and tantalum oxide clusters
- Abstract:
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Resonant and non-resonant multiple photon excitation of small tantalum and tantalum oxide clusters, TanOm (n = 4–15, m = 0, 1, 2) is shown to lead to thermionic emission and the production of the corresponding cationic clusters. In this way, we have recorded mass-resolved photoionisation spectra in the mid-infrared using the intense free-electron laser for intracavity experiments (FELICE). All spectra exhibit a broad non-resonant band with lower thresholds around 800 cm−1 whose efficiency increases to higher wavenumbers as fewer photons are required to reach the ionisation threshold. In addition, the neutral oxide clusters have strong resonant absorptions feature assigned as the oxide symmetric stretching mode, and their infrared spectra are very similar to those reported previously for the corresponding cationic clusters, TanOm+, recorded by infrared multiple photon dissociation.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Supplementary materials, pdf, 1.7MB, Terms of use)
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(Preview, Version of record, pdf, 3.2MB, Terms of use)
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- Publisher copy:
- 10.1080/00268976.2025.2596916
Authors
- Funder identifier:
- https://ror.org/0439y7842
- Grant:
- EP/T021675/1
- Publisher:
- Taylor & Francis
- Journal:
- Molecular Physics More from this journal
- Publication date:
- 2025-12-12
- Acceptance date:
- 2025-11-25
- DOI:
- EISSN:
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1362-3028
- ISSN:
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0026-8976
- Language:
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English
- Keywords:
- Pubs id:
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2335949
- Local pid:
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pubs:2335949
- Deposit date:
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2025-11-27
- ARK identifier:
Terms of use
- Copyright holder:
- Watson et al.
- Copyright date:
- 2025
- Rights statement:
- © 2025 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use,distribution, and reproduction in any medium, provided the original work is properly cited. The terms on which this article has been published allow the posting of the AcceptedManuscript in a repository by the author(s) or with their consent.
- Licence:
- CC Attribution (CC BY)
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