Synthesis, electrochemistry, Langmuir–Blodgett deposition and photophysics of metal-coordinated fullerene–porphyrin dyads

A novel fullerene–Ru–porphyrin conjugate (3b) for Langmuir–Blodgett (LB) film deposition has been synthesized. The side polar chain that characterizes the complex is necessary to introduce enough amphiphilicity in these otherwise non-polar moieties. The complex can be deposited on solid substrates via the LB technique and the films obtained show charge separation upon light irradiation. In addition, a careful cyclic voltammetry study of the complex is reported.