M. Diekers et al., Synthesis, cyclic voltammetry, and photophysical properties of a bridged o-phenylenediamine-C-60 dyad, ORG LETT, 2(18), 2000, pp. 2741-2744
The synthesis, complete spectroscopic characterization, cyclic voltammetry,
and photophysical measurements of a new omicron-phenylenediamine C-60 dyad
are described. By using a tether strategy, only a single regioisomer was o
btained. Cyclic voltammetry measurements indicate that the two electroactiv
e groups do not interact in their singlet ground states. Photophysical inve
stigations reveal a rapid photoinduced electron transfer between the single
t excited state of the fullerene acceptor and the omicron-phenylenediamine
donor, yielding a charge-separated radical pair.