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The electron affinity of astatine

Journal Article · · Nature Communications
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  1. European Organization for Nuclear Research (CERN), Geneva (Switzerland); Univ. of Gothenburg (Sweden). Dept. of Physics; Johannes Gutenberg Univ., Mainz (Germany). Institut für Physik; OSTI
  2. Univ. of Gothenburg (Sweden). Dept. of Physics
  3. Univ. of Groningen (Netherlands). Van Swinderen Inst. for Particle Physics and Gravity
  4. National Centre for Physics (NCP), Islamabad (Pakistan)
  5. European Organization for Nuclear Research (CERN), Geneva (Switzerland); Johannes Gutenberg Univ., Mainz (Germany). Institut für Kernchemie
  6. European Organization for Nuclear Research (CERN), Geneva (Switzerland)
  7. European Organization for Nuclear Research (CERN), Geneva (Switzerland); Johannes Gutenberg Univ., Mainz (Germany). Institut für Physik
  8. Tel Aviv Univ., Tel Aviv (Israel). School of Chemistry
  9. Petersburg Nuclear Physics Insti. Gatchina (Russian Federation)
  10. Friedrich-Schiller-Universität, Jena (Germany). Institut für Optik und Quantenelektronik; Helmholtz-Institut Jena (Germany)
  11. CEISAM Institute, Nantes (France); Université de Nantes (France); Centre National de la Recherche Scientifique (CNRS) (France)
  12. European Organization for Nuclear Research (CERN), Geneva (Switzerland); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  13. Johannes Gutenberg Univ., Mainz (Germany). Institut für Physik
  14. Katholieke Univ. Leuven, Heverlee (Belgium). Instituut voor Kern- en Stralingsfysica
  15. Institut Laue-Langevin, Grenoble (France)
  16. Stockholm Univ. (Sweden). Dept. of Physics
  17. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  18. Comenius Univ., Bratislava (Slovakia)
  19. SCK CEN, Research Centre Mol (Belgium)
  20. Univ. of Jyvaskyla (Finland). Dept. of Physics
  21. European Organization for Nuclear Research (CERN), Geneva (Switzerland); Univ. of Gothenburg (Sweden). Dept. of Physics
  22. Univ. of Manchester (United Kingdom)
  23. Univ. of Gothenburg (Sweden). Dept. of Physics; Johannes Gutenberg Univ., Mainz (Germany). Institut für Physik
+ Show Author Affiliations
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-photo detachment spectroscopy of radioisotopes opens the path for future EA measurements of other radioelements such as polonium, and eventually super-heavy elements.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
Agence Nationale de la Recherché (ANR); European Research Council (ERC); European Union Horizon 2020; Federal Ministry of Education and Research (BMBF); Scientific Grant Agency of the Slovak Republic; Slovak Research and Development Agency; Swedish Research Council (VR); USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1815645
Journal Information:
Nature Communications, Journal Name: Nature Communications Journal Issue: 1 Vol. 11; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Chemical physics