Universität zu Köln

Strub, Erik ORCID: 0000-0002-4136-2871, Badea, Désirée ORCID: 0000-0002-8837-9988, Bruns, Jörn ORCID: 0000-0002-8589-6154, Frontera, Antonio, Mayordomo, Natalia, Sakhonenkova, Anna ORCID: 0000-0002-5845-5329, Roca Jungfer, Maximilian ORCID: 0000-0001-7583-9634, Wickleder, Mathias ORCID: 0000-0002-8864-4227, Yong, Clarence and Zegke, Markus ORCID: 0000-0002-3933-8039 (2025). Technetium - The Unknown Center of the Periodic Table. European Journal of Inorganic Chemistry, 28 (9). ISSN 1434-1948

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Abstract

It took 78 years from Mendeleev's proposal of an existence of “eka‐manganese” (1869) until it was finally named as technetium (Tc) in 1947. Another 78 years have passed since then. This provides a good occasion to pinpoint what we know and what we still do not know of this radioelement. Technetium is placed near the center of the Periodic Table, in the center of the groups 6, 7, and 8. Some chemical properties of the elements surrounding technetium show trends within the columns or along the rows of the Periodic Table, but a consistent interpretation of these trends is lacking as long as the knowledge on technetium remains incomplete. This is especially remarkable as, on the other hand, the isotope 99m Tc is applied on a daily basis in nuclear medicine. The aim of this paper is to review the fundamental understanding of technetium chemistry, mostly focusing on the research of the last decade, its implications, and its future perspectives. These developments show a picture of growing connections between physicochemical data, fundamental inorganic chemistry, organometallic and coordination chemistry, computational chemistry, and geochemistry.

Item Type:	Article
Creators:	Creators Email ORCID ORCID Put Code Strub, Erik UNSPECIFIED https://orcid.org/0000-0002-4136-2871 UNSPECIFIED Badea, Désirée UNSPECIFIED https://orcid.org/0000-0002-8837-9988 UNSPECIFIED Bruns, Jörn UNSPECIFIED https://orcid.org/0000-0002-8589-6154 UNSPECIFIED Frontera, Antonio UNSPECIFIED UNSPECIFIED UNSPECIFIED Mayordomo, Natalia UNSPECIFIED UNSPECIFIED UNSPECIFIED Sakhonenkova, Anna UNSPECIFIED https://orcid.org/0000-0002-5845-5329 UNSPECIFIED Roca Jungfer, Maximilian UNSPECIFIED https://orcid.org/0000-0001-7583-9634 UNSPECIFIED Wickleder, Mathias UNSPECIFIED https://orcid.org/0000-0002-8864-4227 UNSPECIFIED Yong, Clarence UNSPECIFIED UNSPECIFIED UNSPECIFIED Zegke, Markus UNSPECIFIED https://orcid.org/0000-0002-3933-8039 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-796492
Identification Number:	10.1002/ejic.202400780
Journal or Publication Title:	European Journal of Inorganic Chemistry
Volume:	28
Number:	9
Date:	21 March 2025
ISSN:	1434-1948
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Chemistry > Institute of Biochemistry
Subjects:	Chemistry and allied sciences Life sciences
['eprint_fieldname_oa_funders' not defined]:	Publikationsfonds UzK
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/79649