Supramolecularly directed rotary motion in a photoresponsive receptor

Sander J. Wezenberg () and Ben L. Feringa
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Sander J. Wezenberg: University of Groningen
Ben L. Feringa: University of Groningen

Nature Communications, 2018, vol. 9, issue 1, 1-7

Abstract: Abstract Stimuli-controlled motion at the molecular level has fascinated chemists already for several decades. Taking inspiration from the myriad of dynamic and machine-like functions in nature, a number of strategies have been developed to control motion in purely synthetic systems. Unidirectional rotary motion, such as is observed in ATP synthase and other motor proteins, remains highly challenging to achieve. Current artificial molecular motor systems rely on intrinsic asymmetry or a specific sequence of chemical transformations. Here, we present an alternative design in which the rotation is directed by a chiral guest molecule, which is able to bind non-covalently to a light-responsive receptor. It is demonstrated that the rotary direction is governed by the guest chirality and hence, can be selected and changed at will. This feature offers unique control of directional rotation and will prove highly important in the further development of molecular machinery.

Date: 2018
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DOI: 10.1038/s41467-018-04249-x

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