Hydrogen Bonding-Directed Quantitative Self-Assembly of Cyclotriveratrylene Capsules and Their Encapsulation of C60 and C70

Under the direction of intramolecular three-center hydrogen bonding, two cyclotriveratrylene (CTV)-based capsules are assembled quantitatively from C3-symmetric CTV precursors by forming three imine bonds from arylamide-derived foldamer segments. 1H and 13C NMR and UV/vis experiments reveal that the capsules strongly encapsulate C60 and C70 in discrete solvents.