Basel Universität

Reseach topics

4,2':6',4''-terpyridine derivatives

Especially designed for experiments at the solid-vacuum interphase, 4,2':6',4''-terpyridines possess in contrast to the well-established chelating 2,2':6',2''-terpyridines only 2 coordination centers, resulting in a V-shaped building block allowing control over metal-organic assemblies.

Interested in it's on-surface chemistry behavior, molecules have been deposited and depicted on the non-reactive Au(111) substrate. In a first attempt, we are seeking to build tunable confined reaction containers on top of a reactive metal catalyst. Therefore we investigate the interplay of the surface with the molecular backbone and it's functionalization in regard of different binding motives.
Programmed assembly of 4,2':6',4''-terpyridine derivatives into porous, on-surface networks

In a more in-depth study, we extend our research by a comparative study between 2D and 3D self-assemblies of the same molecule, on-surface and in-solution. In order to create a toolkit database regarding supramolecular conformation prediction, we examine guiding condensation and repelling forces of different functianlizations and investigate the role of the solvents and specific surface effects. Thereby the importance of even the smallest changes in the parameter space is demonstrated.
The different faces of 4'-pyrimidinyl functionalized 4,2':6',4''-terpyridines: metal organic assemblies from solution and on Au(111) and Cu(111) surface platforms

More to come