Design of Chiral Supramolecular Polymers Exhibiting a Negative Nonlinear Response.

ABSTRACT: Many synthetic and supramolecular chiral polymeric systems are known to exhibit the "majority rules effect" (MRE), a positive nonlinear response in which a small enantiomeric excess (ee) of the chiral building blocks leads to unproportionally large chiroptical signals near zero ee. In contrast, the opposite "racemate rules effect" (RRE), a negative nonlinear response in which the chiroptical signals are flat near zero ee, while giving large nonlinear chiroptical responses to ee at high values, has only been occasionally observed. The origin of this unusual ee dependence remains elusive largely because few systems have been established that exhibit this effect. Herein, we present a design approach that enables the development of chiral supramolecular polym

SUBMITTER: Chen XX 

PROVIDER: S-EPMC7497655 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature