Photochemical CO2 Reduction to CO Catalyzed by a Doubly N-Confused Hexaphyrin Dinuclear Iron Complex

In the quest for efficient catalysts for the CO2 reduction reaction, a doubly N-confused hexaphyrin (DNCH) dinuclear iron complex, [(FeCl)2(DNCH)], was found to be catalytically active in the photochemical CO2 reduction reaction. Electro-chemical and spectroelectrochemical measurements revealed that the DNCH ligand functions as a redox center in the CO2 reduction reaction.