Direct flipping dynamics and quantized enrichment of chirality at single-molecule resolution.

ABSTRACT: Chirality is an important aspect of nature, and numerous macroscopic methods have been developed to understand and control chirality. For the chiral tertiary amines, their flexible flipping process makes it possible to achieve high chiral controllability without bond formation and breaking. Here, we present a type of stable chiral single-molecule devices formed by tertiary amines, using graphene-molecule-graphene single-molecule junctions. These single-molecule devices allow real-time, in situ, and long-time measurements of the flipping process of an individual chiral nitrogen center with high temporal resolution. Temperature- and bias voltage-dependent experiments, along with theoretical investigations, revealed diverse chiral intermediates, indicating the regulation of the flipping dynam

SUBMITTER: Hu W 

PROVIDER: S-EPMC11244442 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature