Self-assembly of cucurbit[8] uril-based polypseudorotaxanes using host-guest interactions

Two inclusion complexes formed on self-assembly of the Q[8] host with dihexyl-4,4'-bipyridinium (HV2+) dibromide and 1,3-bis(4-butylpiperazin- 1-yl)-propane (C(3)PA(2+)) dibromide guests have been characterized by X-ray crystallography, which clearly shows how the hosts and the guests interlock with each other using supramolecular interactions, eventually generating novel polypseudorotaxanes.