Issue 67, 2020

Signatures of technetium oxidation states: a new approach


A general strategy for the determination of Tc oxidation state by new approach involving X-ray absorption near edge spectroscopy (XANES) at the Tc L3 edge is shown. A comprehensive series of 99Tc compounds, ranging from oxidation states I to VII, was measured and subsequently simulated within the framework of crystal-field multiplet theory. The observable trends in the absorption edge energy shift in combination with the spectral shape allow for a deeper understanding of complicated Tc coordination chemistry. This approach can be extended to numerous studies of Tc systems as this method is one of the most sensitive methods for accurate Tc oxidation state and ligand characterization.

Graphical abstract: Signatures of technetium oxidation states: a new approach

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Article information

Article type
03 Jun 2020
10 Jul 2020
First published
13 Jul 2020
This article is Open Access
Creative Commons BY license

Chem. Commun., 2020,56, 9608-9611

Signatures of technetium oxidation states: a new approach

S. Bauters, A. C. Scheinost, K. Schmeide, S. Weiss, K. Dardenne, J. Rothe, N. Mayordomo, R. Steudtner, T. Stumpf, U. Abram, S. M. Butorin and K. O. Kvashnina, Chem. Commun., 2020, 56, 9608 DOI: 10.1039/D0CC03905E

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