MHz Unidirectional Rotation of Molecular Rotary Motors
- 18 July 2008
- journal article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 130 (32), 10484-10485
- https://doi.org/10.1021/ja8037245
Abstract
A combination of cryogenic UV-vis and CD spectroscopy and transient absorption spectroscopy at ambient temperature is used to study a new class of unidirectional rotary molecular motors. Stabilization of unstable intermediates is achieved below 95 K in propane solution for the structure with the fastest rotation rate, and below this temperature measurements on the rate limiting step in the rotation cycle can be performed to obtain activation parameters. The results are compared to measurements at ambient temperature using transient absorption spectroscopy, which show that behavior of these motors is similar over the full temperature range investigated, thereby allowing a maximum rotation rate of 3 MHz at room temperature under suitable irradiation conditions.This publication has 20 references indexed in Scilit:
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