Light-driven molecular machines based on ruthenium(II) polypyridine complexes: Strategies and recent advances

- Ru(II) polypyridine complexes are useful to photosensitize molecular movements.
- Photoinduced electron-transfer processes can be engineered in synthetic molecular machines.
- Light-driven molecular machines can take advantage of reversible energy transfer and triplet-triplet annihilation upconversion processes.
- Novel functional systems can be designed by exploiting ligand photodissociation reactions.