posted on 2000-08-09, 00:00authored byMichael Diekers, Andreas Hirsch, Chuping Luo, Dirk M. Guldi, Klaus Bauer, Ulrich Nickel
The synthesis, complete spectroscopic characterization, cyclic voltammetry, and photophysical measurements of a new o-phenylenediamine−C60 dyad are described. By using a tether strategy, only a single regioisomer was obtained. Cyclic voltammetry measurements indicate that
the two electroactive groups do not interact in their singlet ground states. Photophysical investigations reveal a rapid photoinduced electron
transfer between the singlet excited state of the fullerene acceptor and the o-phenylenediamine donor, yielding a charge-separated radical
pair.