Beilstein Talk on azobenzene switches as tools to investigate molecular interactions

Beilstein Talks

The Beilstein Talks are a popular addition to the project portfolio of the Beilstein-Institut. The goal of this webinar series is to support communication, discussion, and the exchange of information in the chemical sciences. While Beilstein Talks are always free to attend, registration is straightforward and required to attend these live events.

Azobenzene switches as tools to investigate molecular interactions

Online live talk by

Hermann A. Wegner
/ Justus-Liebig-Universität Gießen, Germany
March 16
, 2023, 3–4 pm CET

👉Click here to register now for free!

The experimental investigation of molecular interactions bears a great challenge despite the importance in all areas of molecular science. Especially small interactions, such as London dispersion, the attractive part of the van der Waals forces, are difficult to quantify as they are usually low in energy [1]. Nevertheless, these forces are omnipresent in any interaction of two molecular entities and can be decisive for structure and properties especially in large molecules. In the past years we have established the azobenzene switch as a powerful tool to characterize London dispersion interactions of different molecular entities [2]. Recently, we were able to show that there is a subtle interplay between intramolecular interactions, the flexibility of the attached groups, as well as the interaction with solvent molecules [3,4]. The insights will serve as a basis to reliably utilize London dispersion as design element for functional materials, catalysis, or other chemical processes [5].


1   Strauss, M. A.; Wegner, H. A. Eur. J. Org. Chem2019, 295–302. doi:10.1002/ejoc.201800970

2   Schweighauser, L.; Strauss, M. A.;  Bellotto, S.; Wegner, H. A. Angew. Chem. Int. Ed201554, 13436–13439. doi:10.1002/anie.201506126

3   Strauss, M. A.; Wegner, H. A. Angew. Chem. Int. Ed201958, 18552–18556. doi:10.1002/anie.201910734

4   Strauss, M. A.; Wegner, H. A. Angew. Chem. Int. Ed. 2021, 60, 779-786. doi:10.1002/anie.202012094

5   Di Berardino, C.; Strauss, M. A.; Schatz, D.; Wegner, H. A. Chem. Eur. J. 2022, 28, No. e2021042. doi:10.1002/chem.202104284

20 Jan 2023

Other Beilstein-Institut Open Science Activities

Keep Informed

RSS Feed

Subscribe to our Latest Articles RSS Feed.


Follow the Beilstein-Institut


Twitter: @BeilsteinInst