https://doi.org/10.1140/epjd/s10053-023-00594-9
Regular Article – Atomic and Molecular Collisions
Fragmentation of tyrosine by high-energy electron impact
1
Institute of Theoretical Physics and Astronomy, Vilnius University, 3 Sauletekio av., 10257, Vilnius, Lithuania
2
Institute of Atomic Physics and Spectroscopy, University of Latvia, 3 Jelgava street, LV-1004, Riga, Latvia
3
Institute of Electron Physics, National Academy of Sciences of Ukraine, 21 Universitetska str, 88017, Uzhgorod, Ukraine
Received:
28
October
2022
Accepted:
5
January
2023
Published online:
20
January
2023
The experimental mass spectra of the tyrosine molecule measured at different microtron accelerator-induced high-energy electron irradiation doses (i.e., 0, 5, and 20 kGy) have been identified and analyzed. The experimental investigation was carried out along with the theoretical study performed by Becke’s three-parameter hybrid density functional approach without and with the inclusion of electric and magnetic fields. It has been shown that high-energy (11.5 MeV) electrons cause irreversible changes in the structure and energy parameters of the molecule under study. The study revealed the importance of proton transfer for fragment formation of the irradiated and non-irradiated tyrosine.
© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
