Ion-pair effects in photoredox chemistry

As reported recently in Nature Chemistry, Rumbles, Reid, and collaborators employed time-resolved dielectric-loss spectroscopy to probe the effect of counterions on the excited-state relaxation kinetics and charge-transfer selectivity of a cationic photoredox catalyst. This ion-pairing phenomenon can be used to control excited-state electron transfer and affect the branching points of photoredox mechanisms. As reported recently in Nature Chemistry, Rumbles, Reid, and collaborators employed time-resolved dielectric-loss spectroscopy to probe the effect of counterions on the excited-state relaxation kinetics and charge-transfer selectivity of a cationic photoredox catalyst. This ion-pairing phenomenon can be used to control excited-state electron transfer and affect the branching points of photoredox mechanisms.