| Téléchargement | - Voir la version finale : Disentangling sequential and concerted fragmentations of molecular polycations with covariant native frame analysis (PDF, 4.8 Mio)
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| DOI | Trouver le DOI : https://doi.org/10.1039/D2CP03029B |
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| Auteur | Rechercher : McManus, Joseph W.1Identifiant ORCID : https://orcid.org/0000-0002-7911-2042; Rechercher : Walmsley, Tiffany1Identifiant ORCID : https://orcid.org/0000-0002-1446-5904; Rechercher : Nagaya, Kiyonobu2; Rechercher : Harries, James R.3; Rechercher : Kumagai, Yoshiaki4; Rechercher : Iwayama, Hiroshi5; Rechercher : Ashfold, Michael N.R.6Identifiant ORCID : https://orcid.org/0000-0001-5762-7048; Rechercher : Britton, Mathew7; Rechercher : Bucksbaum, Philip H.7; Rechercher : Downes-Ward, Briony8; Rechercher : Driver, Taran7Identifiant ORCID : https://orcid.org/0000-0002-3761-6883; Rechercher : Heathcote, David1Identifiant ORCID : https://orcid.org/0000-0003-0611-8555; Rechercher : Hockett, Paul9Identifiant ORCID : https://orcid.org/0000-0001-9561-8433; Rechercher : Howard, Andrew J.7; Rechercher : Kukk, Edwin10; Rechercher : Lee, Jason W. L.11Identifiant ORCID : https://orcid.org/0000-0002-1261-6246; Rechercher : Liu, Yusong7Identifiant ORCID : https://orcid.org/0000-0002-5156-6720; Rechercher : Milesevic, Dennis1Identifiant ORCID : https://orcid.org/0000-0003-4909-5293; Rechercher : Minns, Russell S.8Identifiant ORCID : https://orcid.org/0000-0001-6775-2977; Rechercher : Niozu, Akinobu12Identifiant ORCID : https://orcid.org/0000-0002-7292-5630; Rechercher : Niskanen, Johannes10Identifiant ORCID : https://orcid.org/0000-0002-5501-3082; Rechercher : Orr-Ewing, Andrew J.6Identifiant ORCID : https://orcid.org/0000-0001-5551-9609; Rechercher : Owada, Shigeki13; Rechercher : Rolles, Daniel14Identifiant ORCID : https://orcid.org/0000-0002-3965-3477; Rechercher : Robertson, Patrick A.1Identifiant ORCID : https://orcid.org/0000-0003-0935-3331; Rechercher : Rudenko, Artem14; Rechercher : Ueda, Kiyoshi15; Rechercher : Unwin, James1Identifiant ORCID : https://orcid.org/0000-0001-6009-6735; Rechercher : Vallance, Claire1Identifiant ORCID : https://orcid.org/0000-0003-3880-8614; Rechercher : Burt, Michael1Identifiant ORCID : https://orcid.org/0000-0002-7317-8649; Rechercher : Brouard, Mark1Identifiant ORCID : https://orcid.org/0000-0003-3421-0850; Rechercher : Forbes, Ruaridh16Identifiant ORCID : https://orcid.org/0000-0003-2097-5991; Rechercher : Allum, Felix1Identifiant ORCID : https://orcid.org/0000-0002-8044-8969 |
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| Affiliation | - University of Oxford
- Kyoto University
- QST, SPring-8
- Tokyo University of Agriculture and Technology
- Institute for Molecular Science, Japan
- University of Bristol
- Stanford PULSE Institute. SLAC National Accelerator Laboratory
- University of Southampton
- Conseil national de recherches Canada. Technologies de sécurité et de rupture
- University of Turku
- Deutsches Elektronen-Synchrotron (DESY)
- Hiroshima University
- Japan Synchrotron Radiation Research Institute
- Kansas State University
- Tohoku University
- Linac Coherent Light Source. SLAC National Accelerator Laboratory
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| Bailleur de fonds | Rechercher : Stanford University; Rechercher : University of Southampton; Rechercher : National Science Foundation; Rechercher : Science and Technology Facilities Council; Rechercher : Engineering and Physical Sciences Research Council; Rechercher : Basic Energy Sciences; Rechercher : Helmholtz Association; Rechercher : Jesus College, University of Oxford |
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| Format | Texte, Article |
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| Résumé | We present results from an experimental ion imaging study into the fragmentation dynamics of 1-iodopropane and 2-iodopropane following interaction with extreme ultraviolet intense femtosecond laser pulses with a photon energy of 95 eV. Using covariance imaging analysis, a range of observed fragmentation pathways of the resulting polycations can be isolated and interrogated in detail at relatively high ion count rates (∼12 ions shot⁻¹). By incorporating the recently developed native frames analysis approach into the three-dimensional covariance imaging procedure, contributions from three-body concerted and sequential fragmentation mechanisms can be isolated. The angular distribution of the fragment ions is much more complex than in previously reported studies for triatomic polycations, and differs substantially between the two isomeric species. With support of simple simulations of the dissociation channels of interest, detailed physical insights into the fragmentation dynamics are obtained, including how the initial dissociation step in a sequential mechanism influences rovibrational dynamics in the metastable intermediate ion and how signatures of this nuclear motion manifest in the measured signals. |
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| Date de publication | 2022-09-15 |
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| Maison d’édition | Royal Society of Chemistry |
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| Licence | |
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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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| 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 | 36ee8ed4-2964-4651-a811-a309d24cd118 |
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| Enregistrement créé | 2023-08-30 |
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| Enregistrement modifié | 2023-09-06 |
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