Abstract
AbstractMetadynamics simulation has been used to determine the conformational energy landscapes of several helical quinoline oligoamides bearing β‐pinene‐derived pyridine at either the C or N‐terminus. Based on the experimental results, the helix‐sense preference for four types of foldamers with the chiral terminal group has been verified. To compare to the key factors inducing handedness to helix‐sense preference, a terminal group with three hydrogen bond sites is designed and corresponding foldamers are built. The calculated results show that the delocalization effect and steric hindrance are mainly responsible for a particular helix‐sense preference for the investigated foldamers. The more hydrogen bonds between the terminal group and oligoamide units are formed, the more stable foldamers are.
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