Pertechnetates - A Structural Study Across the Periodic Table

Erik Strub; Dennis Grödler; Daniele Zaratti; Clarence Yong; Lisa Dünnebier; Sonja Bazhenova; Maximilian Roca Jungfer; Martin Breugst; Markus Zegke

doi:10.1002/chem.202400131

Pertechnetates - A Structural Study Across the Periodic Table

Chemistry. 2024 May 8;30(26):e202400131. doi: 10.1002/chem.202400131. Epub 2024 Mar 13.

Authors

Erik Strub¹, Dennis Grödler¹, Daniele Zaratti¹, Clarence Yong¹, Lisa Dünnebier¹, Sonja Bazhenova¹, Maximilian Roca Jungfer², Martin Breugst³, Markus Zegke¹

Affiliations

¹ Department of Chemistry, Division of Nuclear Chemistry, University of Cologne, Zülpicher Str. 45, 50674, Cologne, Germany.
² Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany.
³ Institut für Chemie, Technische Universität Chemnitz, Straße der Nationen 62, 09111, Chemnitz, Germany.

PMID: 38415941
DOI: 10.1002/chem.202400131

Abstract

The number of crystal structures of pertechnetates derived from aqueous solutions has been expanded from seven to over 30. We report the conversion of NH₄TcO₄ to aqueous HtcO₄ via acidic cation exchange. This is followed by the synthesis and structural elucidation of pertechnetate salts of alkaline earth (AE), transition metal I and lanthanoids (Ln) elements. Various degrees of hydration and coordination are discussed. Where possible, a comparison with the perrhenate homologues is made. The described syntheses and materials may be used as novel starting materials for extended technetium research.

Keywords: Technetium; crystallography; hydrates; pertechnetates; pertechnetic acid.