The HOMO and LUMO values of 2,7-tBuCzNB were extrapolated from the electrochemistry measurements in degassed acetonitrile containing 0.1 M [ n Bu4N]PF6 as the supporting electrolyte and Fc/Fc + as the internal reference (0.38 V vs. SCE) (Figure ). The electrochemical data are summarized in Table . The cyclic voltammogram of 2,7-tBuCzNB shows reversible oxidation and reduction waves with an oxidation potential (Eox) of 1.04 V vs.