A binding motif based on 1,3-disubstituted adamantane binds cucurbit[8]uril and cucurbit[7]uril with respective values of pK = 12 and 11 to allow formation of quaternary assemblies with inverse arrangements.

No abstract

The conformation of the title compound, C27H34O, is stabilized by a weak intra­molecular C—H⋯π inter­action. The dihedral angle between the benzene rings is 54.79 (4)°. The adamantane cage consists of three fused cyclo­hexane rings in classical chair conformations, with C—C—C angles in the range 107.75 (10)–111.35 (9)°. Although the mol­ecule contains a hy­droxy group as a conceivable hydrogen-bond donor, this group is sterically hindered by bulky substituents and no hydrogen bonds are observed in the crystal structure.

In the title compound, C18H22O, the dihedral angle between the carbonyl and benzene planes is 69.11 (6)°. In the adamantyl group, the three fused cyclo­hexane rings have almost ideal chair conformations, with C—C—C angles in the range 108.14 (11)–110.50 (11)°. No specific inter­molecular inter­actions (other than van der Waals inter­actions) are present in the crystal.