Directly Attached Bisdonor-BF Chelated Azadipyrromethene-Fullerene Tetrads for Promoting Ground and Excited State Charge Transfer.

The efficiency and mechanism of electron- and energy-transfer events occurring in both natural and synthetic donor-acceptor systems depend on their distance, relative orientation, and the nature of the surrounding media. Fundamental knowledge gained from model studies is key to building efficient energy harvesting and optoelectronic devices. Faster charge separation and slower charge recombination in donor-acceptor systems is often sought out.