Pseudocryptand-Type [3]Pseudorotaxane and “Hook-Ring” Polypseudo[2]catenane Based on a Bis(<i>m</i>-phenylene)-32-crown-10 Derivative and Bisparaquat Derivatives

The first pseudocryptand-type supramolecular [3]pseudorotaxane was designed and prepared via the self-assembly of a bispicolinate BMP32C10 derivative and a bisparaquat. The complexation behavior was cooperative. In addition, the complex comprised of the BMP32C10 derivative and a cyclic bisparaquat demonstrated strong binding; interestingly, a poly[2]pseudocatenane structure was formed in the solid state for the first time.