Division of Nuclear Chemistry

In addition to my office at the Chair of Solid-State and Coordination Chemistry, you can also find me in the Department of Nuclear Chemistry. 

University of Cologne 
Division of Nuclear Chemistry
Zülpicher Str. 45 
Office -1.07 
D-50674 Cologne

Research focus

Structural and reactivity chemistry of technetium: pertechnetates, crown ether pertechnetate complexes, rhenium analogues, and low-oxidation state technetium

Master’s thesis, University of Cologne, Working Group Strub and Working Group Wickleder, October 2024

A Study on the Coordination Chemistry of the Lanthanoid Series with Pertechnetates and the Separation of ¹⁴⁷Pm from its Decay Product ¹⁴⁷Sm

BSc (Honours) Chemistry with Medicinal Chemistry, University of Manchester, July 2017

Research projects: “Isomerism in Mo Carbonyl Phosphite Complexes and the Coordination Chemistry and Spectroscopy of VO²⁺”, “Modelling Nanoporous Crystal Growth”, “Paternò–Büchi Reaction: The Chemical Physics of Synthetic Photochemistry”, “Literature Review on the Applications of P450 Monooxygenases in Organic Synthesis”

Publications

4. Clarence Yong, Sergi Burguera, Dennis Grödler, Christoph Lenting, Hakim Ibrahim, Mathias S. Wickleder, Antonio Frontera, Erik Strub
Intramolecular Matere Bonds in Isostructural Rubidium (18‐Crown‐6) Pertechnetate and Perrhenate Dimers
Eur. J. Inorg. Chem. 2026, 29, e70194.
https://doi.org/10.1002/ejic.70194

3. Clarence Yong, Julian Heinen, Dennis Grödler, Antonio Frontera, Christoph Lenting, Erik Strub
Insights into Potassium 18‐Crown‐6 Complexes with Pertechnetate and Perrhenate: A Structural and Computational Study of their Coordination Chemistry
Z. Anorg. Allg. Chem. 2025, 651, e202500139.
https://doi.org/10.1002/zaac.202500139

2. Erik Strub, Désirée Badea, Jörn Bruns, Antonio Frontera, Natalia Mayordomo, Anna Sakhonenkova; Maximilian Roca Jungfer, Mathias Wickleder, Clarence Yong, Markus Zegke
Technetium ‐ The Unknown Center of the Periodic Table
Eur. J. Inorg. Chem. 2025, 28, e202400780.
https://doi.org/10.1002/ejic.202400780

1. Erik Strub, Dennis Grödler, Daniele Zaratti, Clarence Yong, Lisa Dünnebier, Sonja Bazhenova, Maximilian Roca Jungfer, Martin Breugst, Markus Zegke
Pertechnetates – A Structural Study Across the Periodic Table
Chem. Eur. J. 2024, 30, e202400131.
https://doi.org/10.1002/chem.202400131

Presentations and Posters

3. C. Yong, D. Grödler, M. Zegke, M. S. Wickleder, A. Frontera, E. Strub
“Colourful Pertechnetates: From Simple Salts to Subtle Bonds”
GDCh JungesChemieForum Frühjahrssymposium, Köln, 03.2026
Poster

2. C. Yong, D. Grödler, S. Burguera, A. Frontera, C. Lenting, M. S. Wickleder, E. Strub
“Potassium and Rubidium 18-Crown-6 Complexes with Pertechnetate and Perrhenate: Structural and Computational Insights”
Joint TecRad – RULET Autumn School on Technetium and other Fission Products, Dresden, 11.2025
Poster (Best Poster Prize)

1. E. Strub, D. Grödler, D. Zaratti, C. Yong, L. Dünnebier, S. Bazhenova, M. R. Jungfer, M. Breugst, M. Zegke
“Pertechnetates – A Structural Study Across the Periodic Table”
GDCh Conference on Nuclear Chemistry, Karlsruhe, 11.2024
Presentation

Science Communication

Co-creator of the nuclear chemistry educational card games "Know Your Nuclides" and "Decay Your Nuclide": tools for public outreach and student learning on radioisotope applications, significance, and radioactive decay.