Hydrogen Bonding between Hydroxylic Donors and MLCT-Excited Ru(bpy)2(bpz)2+ Complex: Implications for Photoinduced Electron-Proton Transfer

The equilibrium constants of the hydrogen bonding (HB) between hydroxylic donors, ROH, and an MLCT-excited Ru(bpy)2(bpz)2+ complex, 1(T), correlated with ROH empirical HB acidities, which could be used for evaluating the unimolecular rate constants of concerted electron–proton transfer within the H-bonded phenol–1(T) exciplexes.