Electroactive, internal anthraquinonoid dendritic cores

The modification of the extended 1 --> 3 anthraquinonoid monomer 1 by subst itution of the central aliphatic moiety with a more rigid, aromatic moiety has allowed the syntheses pf the new branched building block 6-possessing m ultiple, internal redox sites. This monomer was used to generate the first tier, dendritic macromolecules 8 and 9, which incorporate different interna l redox centers within the infrastructure as well as the traditional periph eral multifunctionality. Using cyclic voltammetry experiments, the electroc hemical response and electronic interactions between the two electroactive sites (the anthraquinonoid and nitroaromatic moieties) of these dendritic c onstructs were explored.