Control of Excited-State Proton-Coupled Electron Transfer by Ultrafast Pump-Push-Probe Spectroscopy in Heptazine-Phenol Complexes: Implications for Photochemical Water Oxidation

We demonstrate chemical tuning and laser-driven control of intermolecular H-atom abstraction from protic solvent molecules. Using multi-pulse ultrafast pump-push-probe transient absorption (TA) spe...