Nanotubular non-covalent macrocycle within non-covalent macrocycle assembly: (MeOH)(12) encapsulated in a molecular clip cyclododecamer.

A noncovalent macrocycle-within-noncovalent macrocycle assembly is formed from twelve molecules of (+/-)-1 and twelve molecules of MeOH in the solid state. The H-bonded (MeOH)(12) cyclododecamer assumes a crown-shaped geometry that has not previously been predicted theoretically or found experimentally.