Contrasting photodynamics between C60-dithiapyrene and C 60-pyrene dyads

Dirk M. Guldi, Fabian Spänig, David Kreher, Igor F. Perepichka, Cornelia Van Der Pol, Martin R. Bryce, Kei Ohkubo, Shunichi Fukuzumi

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23 Scopus citations


The photodynamics of a C60-dithiapyrene donor-acceptor conjugate were compared with the corresponding Cftirpyrene conjugate. The photoinduced charge separation and subsequent charge recombination processes were examined by time-resolved fluorescence measurements on the picosecond timescale and transient absorption measurements on the picosecond and microsecond timescales with detection in the visible and near-infrared regions. We have observed quite long lifetimes (i.e., up to 1.01 ns) for the photogenerated charge-separated state in a C60-dithiapyrene dyad without the need for i) a long spacer between the two moieties, or ii) a gain in aromaticity in the radical ion pair.

Original languageEnglish
Pages (from-to)250-258
Number of pages9
JournalChemistry - A European Journal
Issue number1
StatePublished - 2008


  • Dyads
  • Electron transfer
  • Fullerenes
  • Photodynamics
  • Pyrenes


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