Topological-skeleton controlled chirality expression of supramolecular hyperbranched and linear polymers.

ABSTRACT: The topology of polymers plays an essential role in their chemical, physical and biological properties. However, their effects on chirality-related functions remain unclear. Here, we reported the topology-controlled chirality expression in the chiral supramolecular system for the first time. Two topological supramolecular polymers, hyperbranched (HP) and linear (LP) supramolecular polymers produced by the host-guest interactions of branched and linear monomers, respectively, exhibited completely different chirality expressions despite the same molecular chirality of their monomers. Significantly, due to the branch points and strong steric hindrance existing in HP, cis-HP showed an enhanced and sign-inverted Cotton effect in the n-π* bands compared with cis-LP, as a result tha

SUBMITTER: Song X 

PROVIDER: S-EPMC11197627 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature