V for tDPABT1B, tDPABT2B, tCzBT1B and tCzBT2B, respectively, obtained from the peak of the differential pulse voltammogram (DPV). These values are modestly anodically shifted compared to that of DtBuCzB in (Eox of 0.94 V in DCM). The corresponding HOMO energies for tDPABT1B and tDPABT2B are -5.31 and -5.34 eV, respectively, which are slightly destabilized compared to tCzBT1B