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Issue 12, 2015
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Kinetic isotope effect of proton-coupled electron transfer in a hydrogen bonded phenol–pyrrolidino[60]fullerene

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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.

Graphical abstract: Kinetic isotope effect of proton-coupled electron transfer in a hydrogen bonded phenol–pyrrolidino[60]fullerene

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Publication details

The article was received on 07 Jul 2015, accepted on 24 Oct 2015 and first published on 27 Oct 2015


Article type: Communication
DOI: 10.1039/C5PP00259A
Citation: Photochem. Photobiol. Sci., 2015,14, 2147-2150
  • Open access: Creative Commons BY-NC license
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    Kinetic isotope effect of proton-coupled electron transfer in a hydrogen bonded phenol–pyrrolidino[60]fullerene

    J. Ravensbergen, C. L. Brown, G. F. Moore, R. N. Frese, R. van Grondelle, D. Gust, T. A. Moore, A. L. Moore and J. T. M. Kennis, Photochem. Photobiol. Sci., 2015, 14, 2147
    DOI: 10.1039/C5PP00259A

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