Abstract
Proton-coupled electron transfer (PCET) plays a central role in photosynthesis and potentially in solar-to-fuel systems. We report a spectroscopy study on a phenol—pyrrolidino[60]fullerene. Quenching of the singlet excited state from 1 ns to 250 ps is assigned to PCET. A H/D exchange study reveals a kinetic isotope effect (KIE) of 3.0, consistent with a concerted PCET mechanism.
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Ravensbergen, J., Brown, C.L., Moore, G.F. et al. Kinetic isotope effect of proton-coupled electron transfer in a hydrogen bonded phenol—pyrrolidino[60]fullerene. Photochem Photobiol Sci 14, 2147–2150 (2015). https://doi.org/10.1039/c5pp00259a
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DOI: https://doi.org/10.1039/c5pp00259a