A Rotation-Inversion Dual-Motion Molecular Switch: Race for NMR Signaling
Journal
Journal of Organic Chemistry
Journal Volume
87
Journal Issue
7
Pages
5029-5034
Date Issued
2022
Author(s)
Abstract
The interplay between the thermal helical inversion (THI) of the stiff-stilbene moiety and the rotation of the dimethylamino (DMA) group in 1 results in a dependence of the DMA NMR signals on the THI kinetics in (E)-1 but the rotation kinetics in (Z)-1, because the faster motion mode is responsible. Consequently, the photochemical switching from (E)-1 to (Z)-1 illustrates the phenomenon of "switchable motion detection"by the same set of NMR signals in a dual-motion molecular system. © 2022 American Chemical Society.
Type
journal article