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

Janneke Ravensbergen, Chelsea L. Brown, Gary Moore, Raoul N. Frese, Rienk Van Grondelle, Devens Gust, Thomas Moore, Ana Moore, John T M Kennis

Research output: Contribution to journalArticle

5 Citations (Scopus)

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.

Original languageEnglish (US)
Pages (from-to)2147-2150
Number of pages4
JournalPhotochemical and Photobiological Sciences
Volume14
Issue number12
DOIs
StatePublished - 2015

Fingerprint

Phenol
Isotopes
isotope effect
phenols
fullerenes
Protons
Hydrogen
electron transfer
Kinetics
protons
Electrons
kinetics
hydrogen
fuel systems
Fuel systems
photosynthesis
Photosynthesis
Excited states
Quenching
quenching

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Kinetic isotope effect of proton-coupled electron transfer in a hydrogen bonded phenol-pyrrolidino[60]fullerene. / Ravensbergen, Janneke; Brown, Chelsea L.; Moore, Gary; Frese, Raoul N.; Van Grondelle, Rienk; Gust, Devens; Moore, Thomas; Moore, Ana; Kennis, John T M.

In: Photochemical and Photobiological Sciences, Vol. 14, No. 12, 2015, p. 2147-2150.

Research output: Contribution to journalArticle

Ravensbergen, Janneke ; Brown, Chelsea L. ; Moore, Gary ; Frese, Raoul N. ; Van Grondelle, Rienk ; Gust, Devens ; Moore, Thomas ; Moore, Ana ; Kennis, John T M. / Kinetic isotope effect of proton-coupled electron transfer in a hydrogen bonded phenol-pyrrolidino[60]fullerene. In: Photochemical and Photobiological Sciences. 2015 ; Vol. 14, No. 12. pp. 2147-2150.
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