First synthesis and electronic properties of (hetero)aryl bridged and directly linked redox active phenothiazinyl dyads and triads

Phenothiazinyl dyads and triads with variable functionalization can be synthesized in good yields by Suzuki coupling with suitable phenothiazinyl boronates. In addition, the structure of the phenylated phenothiazine (6) has been corroborated by an X-ray structure analysis. According to cyclic voltammetry these oligofunctional heterocyclic oligomers are strongly electronically coupled and represent suitable functional units for novel redox active molecular wires.