The following themes characterize the group research:
- Ligand design.
In addition to the well-known steric and electronic effects the ligand
geometry of the catalyst centre has a profound influence on the reaction rate
and selectivity. Designing ligands that steer the catalytic reaction in an
enantio-selective manner is a major research aim.
- Supramolecular catalysis.
Supramolecular building blocks such as calixarenes and porphyrins are used to
construct novel catalysts based on non-covalent bonds. This approach may lead to
catalysts containing a substrate-binding site next to a catalyst-binding site.
It is envisaged that these new supramolecular systems give higher selectivity
for the intended substrate and the desired product.
- Separation.
For viable catalytic processes the separation of catalyst and reaction
product is of great importance. A broad range of separation techniques is under
investigation, such as catalysis in water, development of dendrimeric catalysts,
and heterogenisation. Especially for alkene metathesis we focus on heterogeneous
catalysis.