Research Divisions

Homogeneous Catalysis Redox Transformations of “Grand Challenge” Molecules

We are interested in homogeneous catalysis redox transformations of “grand challenge” molecules (those related to energy storage, or molecules generally found to be kinetically refractory: H2, O2, alkanes, fluorocarbons). We envision this happening not only by redox changes at the metal, but with an assist from a ligand which can exist in several different charge states, due to its delocalized pi system. Illustrated here is one example, two fused indoles with pendant redox active imines; together this can complex two metals (better redox versatility!), and be reduced (note the potassium cations which indicate a reduced state of the ligand) prior to transferring those electrons to substrate (e.g., CO2 or N2).

Kenneth Caulton

Distinguished Professor