Dimers of pyrrolo-annelated indenofluorene-extended tetrathiafulvalenes - large multiredox systems.

Novel scaffolds of indenofluorene (IF)-extended tetrathiafulvalenes (TTF) were synthesized starting from a new pyrrolo-annelated IF-TTF monomer. Rigid para - and meta -phenylene linked dimers were obtained via N -arylation reactions of the monomer, and their optical and redox properties were elucidated by UV-Vis absorption spectroscopy and cyclic and differential pulse voltammetries.