A1 Journal article (refereed)
The electron affinity of astatine (2020)
Leimbach, D., Karls, J., Guo, Y., Ahmed, R., Ballof, J., Bengtsson, L., Boix Pamies, F., Borschevsky, A., Chrysalidis, K., Eliav, E., Fedorov, D., Fedosseev, V., Forstner, O., Galland, N., Garcia Ruiz, R. F., Granados, C., Heinke, R., Johnston, K., Koszorus, A., . . . Rothe, S. (2020). The electron affinity of astatine. Nature Communications, 11, Article 3824. https://doi.org/10.1038/s41467-020-17599-2
JYU authors or editors
Publication details
All authors or editors: Leimbach, David; Karls, Julia; Guo, Yangyang; Ahmed, Rizwan; Ballof, Jochen; Bengtsson, Lars; Boix Pamies, Ferran; Borschevsky, Anastasia; Chrysalidis, Katerina; Eliav, Ephraim; et al.
Journal or series: Nature Communications
eISSN: 2041-1723
Publication year: 2020
Publication date: 30/07/2020
Volume: 11
Article number: 3824
Publisher: Nature Publishing Group
Publication country: United Kingdom
Publication language: English
DOI: https://doi.org/10.1038/s41467-020-17599-2
Publication open access: Openly available
Publication channel open access: Open Access channel
Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/71310
Publication is parallel published: https://arxiv.org/abs/2002.11418
Abstract
One of the most important properties influencing the chemical behavior of an element is the electron affinity (EA). Among the remaining elements with unknown EA is astatine, where one of its isotopes, 211At, is remarkably well suited for targeted radionuclide therapy of cancer. With the At− anion being involved in many aspects of current astatine labeling protocols, the knowledge of the electron affinity of this element is of prime importance. Here we report the measured value of the EA of astatine to be 2.41578(7) eV. This result is compared to state-of-the-art relativistic quantum mechanical calculations that incorporate both the Breit and the quantum electrodynamics (QED) corrections and the electron–electron correlation effects on the highest level that can be currently achieved for many-electron systems. The developed technique of laser-photodetachment spectroscopy of radioisotopes opens the path for future EA measurements of other radioelements such as polonium, and eventually super-heavy elements.
Keywords: astatine
Free keywords: electron affinity; astatine
Contributing organizations
Related projects
- ENSAR2 European Nuclear Science and Application Research 2
- Jokinen, Ari
- European Commission
Ministry reporting: Yes
Reporting Year: 2020
JUFO rating: 3