Redox and photophysical properties of a large number of the BODIPY-, aza-BODIPY-, and BOPHY-based donor-acceptor dyads and triads (with representative examples given in Figure 1) have been investigated by the variety of steady-state and time-resolved spectroscopic methods. An influence of the catechol bridge between organic chromophore and the nanocarbon-based acceptor was studied in details and correlated with the electronic structures of new compounds investigated by the Density Functional Theory (DFT) and Time-Dependent DFT (TD-DFT) methods. It was found that catechol bridge is quite efficient electron-donor, which hinders the photo-induced electron-transfer processes in dyads and triads.

Fig. 1. Representative examples of BODIPY-, aza-BODIPY-, and BOPHY-based dyads and triads.