A photochemical method to evidence directional molecular motions
Regen-Pregizer B, Özçelik A, Mayer P, Hampel F, Dube H (2023)
Publication Type: Journal article
Publication year: 2023
Journal
Book Volume: 14
Article Number: 4595
Journal Issue: 1
DOI: 10.1038/s41467-023-40190-4
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 quantified. Comparison of the corresponding quantum yields to the unrestricted motor delivers direct evidence for unidirectionality. This method can be used for any ultrafast molecular motor even in cases where no high energy intermediates are present during the rotation cycle.
Authors with CRIS profile
Benjamin Regen-Pregizer
Lehrstuhl für Organische Chemie I
Ani Özçelik
Lehrstuhl für Organische Chemie I
Frank Hampel
Lehrstuhl für Organische Chemie I
Henry Dube
Lehrstuhl für Organische Chemie I
Involved external institutions
Germany (DE)How to cite
APA:
Regen-Pregizer, B., Özçelik, A., Mayer, P., Hampel, F., & Dube, H. (2023). A photochemical method to evidence directional molecular motions. Nature Communications, 14(1). https://doi.org/10.1038/s41467-023-40190-4
MLA:
Regen-Pregizer, Benjamin, et al. "A photochemical method to evidence directional molecular motions." Nature Communications 14.1 (2023).
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