FULLERENE PYRAZINE DYADS: INTRAMOLECULAR ENERGY TRANSFER ROUTE TO THE FULLERENE MOIETY

摘要

A synthetic route to 1, 4-diazine-fused [60]fullerenes has been developed based on the Diels-Alder reaction of 2, 3-bis(trimethylsiloxy)butadiene and [60]fullerene followed by Oxidation to the corresponding 1, 2-diketone and condensation with 1, 2-diamines. These Bichromophoric compounds promote the UV/Vis absorption and act as light-harvesting Systems involving energy transfer from the pyrazine chromophor to the fullerene unit. A Detailed investigation of the photophysical steps will be presented which finally leak to Fullerene triplet states.