Very large acceleration of the photoinduced electron transfer in a Ru(bpy)3–naphthalene bisimide dyad bridged on the naphthyl core

By linking a naphthalenebisimide (NBI) unit to [Ru(bpy)3]2+ on the naphthyl core the rate of photoinduced Ru-to-NBI electron transfer was 1000-fold increased compared to the case with a conventional linking on the nitrogen.