Perspectives of Redox-Active Ligands in Artificial Photosynthesis

Organic ancillary ligands can cooperate with metal centers in different ways in molecular catalysts of the very important oxygen evolving reaction. In this overview, we focus on what can be gained of such a cooperation and bring examples on the possible useful outcomes of redox state changes in ancillary ligands. Analogies are also highlighted if apply, with the cooperation between the natural oxygen evolving complex and the redox-mediating Tyrosine-Histidine pairs found in photosystem II.