Jinqiang Zhang

TL;DR: Self-sorting organization of two AB-type heteroditopic monomers led to the formation of linear supramolecular alternating copolymers driven by host-guest noncovalent interactions based on the bis(p-phenylene)-34-c Crown-10/paraquat derivative and dibenzo-24-crown-8/dibenzylammonium salt recognition motifs.

TL;DR: In this article, the authors present reversible switching between linear and cross-linked supramolecular polymers, where the desired motifs can be conveniently introduced into the low molecular weight monomers, thus avoiding the problems commonly associated with covalently linked polymer backbones, and thus leading to more effective method for switching between different architectures.

TL;DR: It is demonstrated that secondary dialkylammonium salts can thread through the cavity of benzo-21-crown-7 to form [2]pseudorotaxanes with binding constants higher than the corresponding values of the analogous complexes with their traditionally used host, dibenzo-24-c Crown-8.

TL;DR: Tworotaxanes were synthesized by using a threading-followed-by-stoppering method due to the strong associations between the cryptands and the paraquat derivative, high yields were achieved even in dilute solution.

TL;DR: Dibenzo-24-crown-8-based cryptand 4 forms 1:1 inclusion complexes with three paraquat derivatives, P1, P2, and P3, as demonstrated by proton NMR spectroscopy and X-ray analysis.