Systematic Synthesis and Characterization of a Series of Tetra(5-aryl-2-thienyl)thiophenes

We have succeeded in the synthesis of a series of tetra(5-aryl-2-thienyl)thiophenes as aryl-functionalized tetrathienylthiophenes. Characterization of these chemicals was performed by physical and spectroscopic means. The electrochemical properties were examined by cyclic voltammetry. The CV of all compounds showed that the redox behavior and potentials were controlled by the electronic effect of the p-substituted phenyl groups introduced at the outer alpha-positions on the four thiophene units linked to the thiophene core.