Doubly ionised 2,4-imidazolidinedione (hydantoin) dissociations induced by electron collision, fragmentation thresholds <i>vs.</i> vertical excitation energies
The double ionisation/dissociation process for a prebiotic molecule (hydantoin) induced by 20-40 eV electron collisions was studied using time-of-flight spectrometry and velocity map imaging. Fragmentation into two molecular cations reveals that hydrogen transfer occurs in the excited state. Furthermore, the thresholds of the main dissociation channels were measured. Comparison with state-of-the-art calculations of the vertical excited states of hydantoin<sup>2+</sup> gives an accurate indication of the initial population of the excited states.
Authors
- Jean-Philippe Champeaux (ORCID: https://orcid.org/0000-0002-3867-4022)
- Eszter Dudás (ORCID: https://orcid.org/0000-0001-7874-5078)
- P. Cafarelli
- P Moretto-Capelle (ORCID: https://orcid.org/0009-0004-2569-4739)
- Anthony Scemama (ORCID: https://orcid.org/0000-0003-4955-7136)
- Stéphane Faure (ORCID: https://orcid.org/0000-0003-2649-1314)
Institutions
- Centre National de la Recherche Scientifique (FR)
- Laboratoire Collisions Agrégats Réactivité (FR)
- Laboratoire de Chimie et Physique Quantiques (FR)
Publication Details
- Journal
- Physical Chemistry Chemical Physics
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1039/d5cp01613d
- Citations
- 1
- Primary Topic
- Chemical Reactions and Mechanisms
- Type
- article
- Field-Weighted Citation Impact
- 1.75
Funders
- Agence Nationale de la Recherche