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Synthesis, Cyclic Voltammetry, and Photophysical Properties of a Bridged o-Phenylenediamine−C60 Dyad

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posted on 2000-08-09, 00:00 authored by Michael 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.

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