However, it is important to note that this does not imply that the design approach of incorporating these electrondonating spectator ligands is inherently flawed. Instead, it suggests that, to achieve catalytic activity, it might be necessary to include additional properties of the catalytic center, i.e., its redox potential, into the design of the photocatalyst, in order to better align it with the energy of the intermediate 3 MLCT phz state. Alternatively, a different bridging ligand that is less stabilized by the prbim spectator ligands, therefore with an anticipated smaller energy gap between bridge and catalytic center, can be used. This would then open avenues for future exploration of catalytically highly active molecular compounds.