Azacoronene in Helicenes and Conjugated Polymers

In this paper, we report redox-active azacoronene helicenes obtained through nucleophilic substitution of fluorinated helicenes with 3,4-diethylpyrrole, followed by Scholl reactions. Cyclic voltammetry of these compounds displays reversible oxidation events at low oxidation potentials. The oxidized species display distinct optical properties. Additionally, we incorporated the azacoronene/helicene unit into conjugated polymers.