A photochemical method to evidence directional molecular motions.

ABSTRACT: Light driven synthetic molecular motors represent crucial building blocks for advanced molecular machines and their applications. A standing challenge is the development of very fast molecular motors able to perform rotations with kHz, MHz or even faster frequencies. Central to this challenge is the direct experimental evidence of directionality because analytical methods able to follow very fast motions rarely deliver precise geometrical insights. Here, a general photochemical method for elucidation of directional motions is presented. In a macrocyclization approach the molecular motor rotations are restricted and forced to proceed in two separate ~180° rotation-photoequilibria. Therefore, all four possible photoinduced rotation steps (clockwise and counterclockwise directions) can be qua

SUBMITTER: Regen-Pregizer BL 

PROVIDER: S-EPMC10390485 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature