Biasing the Screw-Sense of Supramolecular Coassemblies Featuring Multiple Helical States.

ABSTRACT: By enchaining a small fraction of chiral monomer units, the helical sense of a dynamic polymer constructed from achiral monomer units can be disproportionately biased. This phenomenon, known as the sergeants-and-soldiers (S&S) effect, has been found to be widely applicable to dynamic covalent and supramolecular polymers. However, it has not been exemplified with a supramolecular polymer that features multiple helical states. Herein, we demonstrate the S&S effect in the context of the temperature-controlled supramolecular copolymerization of chiral and achiral biphenyl tetracarboxamides in alkanes. The one-dimensional helical structures presented in this study are unique because they exhibit three distinct helical states, two of which are triggered by coassembling with monomeric water that

SUBMITTER: Van Zee NJ 

PROVIDER: S-EPMC7705959 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature