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 editorsLeimbach, David; Karls, Julia; Guo, Yangyang; Ahmed, Rizwan; Ballof, Jochen; Bengtsson, Lars; Boix Pamies, Ferran; Borschevsky, Anastasia; Chrysalidis, Katerina; Eliav, Ephraim; et al.

Journal or seriesNature Communications

eISSN2041-1723

Publication year2020

Publication date30/07/2020

Volume11

Article number3824

PublisherNature Publishing Group

Publication countryUnited Kingdom

Publication languageEnglish

DOIhttps://doi.org/10.1038/s41467-020-17599-2

Publication open accessOpenly available

Publication channel open accessOpen Access channel

Publication is parallel published (JYX)https://jyx.jyu.fi/handle/123456789/71310

Publication is parallel publishedhttps://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.


Keywordsastatine

Free keywordselectron affinity; astatine


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Ministry reportingYes

Reporting Year2020

JUFO rating3


Last updated on 2024-26-03 at 09:18