Figure 13.

(Top) Schematic representation of type I and type II complexes between AC and βCD derivatives bearing aromatic clips, with indication of the expected diagnostic NOE contacts. (Middle) MBE structure of the ternary complex formed by 4-dimer and AC. (Bottom) MBE structures of the type I (left) and type II (right) 5-dimer:AC complexes obtained by approaching the AC guest to the CD host by the primary rim, to give a type I complex (left), or by the secondary rim, to give a type II complex (right). In the CD partners, oxygens are colored in red, carbons in tan; H atoms have been removed and the aromatic ring is highlighted in green; in the AC partner, the carbon atoms are highlighted in cyan for the sake of clarity.