Bimetallic Catalysis

Symbolbild zum Artikel. Der Link öffnet das Bild in einer großen Anzeige.

Most enzymes are multimetallic catalysts that cooperate efficiently in order to accomplish their specific tasks. We have developed a variety of bimetallic catalysts that have been tested in the copolymerization of cyclohexene oxide and CO2. The dimeric Zn catalyst for this reaction suffers from a dimer-monomer equilibrium. As the monomer is inactive, polymerizations are run at high concentration (this maximizes the dimer content). High concentrations, however, limit the monomer conversion.

We developed a convenient synthetic route to bimetallic Zn catalysts that are also active under dilute reaction conditions and give complete monomer conversion.

(Piesik, Range, Harder Organometallics 2008)