Welcome to the Mastalerz Group

Group 2022

About the Lab


The Mastalerz Group is a diverse team of enthusiastic organic chemists that do not fear to tackle multistep syntheses of fascinating three-dimensional compounds such as shape-persistent chiral organic cage compounds or unique polycyclic aromatic hydrocarbons with negative curvature such as monkey-saddles or azulene containing PAHs.

For more details, see our research section.

If you are interested to join our highly motivated team, find more information here.
 
 

News


Toc 120 Philippe 2023

25.01.2023 - Paper accepted!

Congrats to Philippe!

His paper on the Solvent-Controlled Quadruple Catenation of Giant Chiral [8+12] Salicylimine Cubes Driven by Weak Hydrogen Bonding was accepted in Angew. Chem. Int. Ed.!!

Philippe investigated the system he found a chiral self-sorting for further and revealed a dependence of the ratio of single cage vs. catenane on different solvents used during the reaction. A systematic study of various solvents and the interpretation of single-crystal X-ray diffraction analysis revealed weak hydrogen bonds as driving force for the occuring catenation. Furthermore, the catenation motif (quadruply interlocked) was different from the ones we observed recently (triply interlocked) for a series of [8+12] cage based on TBTQ with inversed functionalities. This new study adds another piece to the puzzle to unravel the fundamentals of catenations and their driving forces.

If you are interested in the story, click here or directly on the picture on the left.

Great job Philippe!

   
       
Lisa Toc 2022

06.01.2023 - Paper accepted!

Congrats to Lisa!

Her paper on Two Dimensional Triptycene End-Capping and Its Influence on the Self-Assembly of Quinoxalinophenanthrophenazines was accepted in Chin. J. Chem.!!

Triptycene end-capping has become a common tool in our group to solubilize a whole variety of molecules as for example Quinoxalinophenanthrophenazines (QPPs) while remaining a tendency of the molecules to crystalize. While we have studied different QPPs with one-dimensional triptycene end-capping, Lisa developed a triphenylene based two-dimensional end-cap and found the formation of dimers in both, solution and solid-state caused by strong π-π-interactions and a shape self-matching.

If you are interested in the story, click here or directly on the picture on the left.

Great job Lisa!

   
       
Toc Alex 2022

22.12.2022 - Paper accepted!

Congrats to Alex!

His paper on the N-Heterocyclic Carbene Mediated Sulfur Extrusion of Disulfides was accepted in Eur. J. Org. Chem.!!

Thioethers can be found as motifs in natural compounds such as lantibiotics, find application in materials chemistry or are commonly used in cyclophanes serving as precursors of polycyclic aromatic hydrocarbons. For their synthesis, the sulfur extrusion of disulfides to the corresponding thioethers is a potential synthetic method. Until now, aminophosphines such as HMPT (also known as liquid cancer) have been used for this purpose, despite their enormous cancerogenity. Alex developed a method using readily available nontoxic N-heterocyclic carbenes instead on aminophosphines and achieved a sulfur extrusion under mild conditions, for a broad substrate scope and in a variety of solvents.

If you are interested in the story, click here or directly on the picture on the left.

Great job Alex!

   
       
Sven Bsc Award 2022

14.12.2022 - Best B.Sc. Course Award

Congrats to Sven!

His teaching in the OC2 module (seminar + lab course) was awarded with the Best B.Sc. Course Award for 2022 by the bachelor students and the Fachschaft Chemie/Biochemie.

The students awarded him for "the enjoyable atmosphere he creates during his course and his skill to explain complex topics in a simple and straightforward manner".

Good job Sven.

   
       
Tacy Position

14.12.2022 - OPEN POSITIONS!!!

We have open positions for PhD students as well as postdocs in our new TACY project.

Find more information and details in our Vacancies Section.

If you are interested, contact us at any time via email.

We would be happy to welcome you as members in our team!

   
       
117 Toc

14.12.2022 - Paper accepted!

Congrats to Bahiru!

His paper on the dimeric and trimeric catenation of giant chiral [8+12] imine cubes driven by weak supramolecular interactions has been published in Nature Chemistry!!

The catenation of (porous) organic cages is a phenomenon, which amazed and puzzled researchers for a long time since the driving force is not always well understood. Bahiru systematically investigated a series of cages and found weak intermolecular interactions as driving force for the catenation which have been further studied with computational methods by Tobias Kirschbaum. Bahiru was not only able to isolate interlocked cages dimers but furthermore trimeric cage catenanes, whose structures have been identified by in-depth analysis by NMR as well as mass spectrometry. In both cases we are grateful to Dr. Jürgen Graf (OCI-NMR Department) and Dr. Jürgen Gross (OCI-Mass Department) for their contribution.

If you are interested in the story, click here or directly on the picture on the left.

Incredible work Bahiru!

   
       

 

Find older news here.

 

 

Funding


Funding Update 2022

 

 

 

 

 

 
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