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Light-Gated Rotation in a Molecular Motor Functionalized with a Dithienylethene Switch.

ABSTRACT: A multiphotochromic hybrid system is presented in which a light-driven overcrowded alkene-based molecular rotary motor is connected to a dithienylethene photoswitch. Ring closing of the dithienylethene moiety, using an irradiation wavelength different from the wavelength applied to operate the molecular motor, results in inhibition of the rotary motion as is demonstrated by detailed 1 H-NMR and UV/Vis experiments. For the first time, a light-gated molecular motor is thus obtained. Furthermore, the excitation wavelength of the molecular motor is red-shifted from the UV into the visible-light region upon attachment of the dithienylethene switch.

SUBMITTER: Roke D

PROVIDER: S-EPMC6099277 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature

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Light-Gated Rotation in a Molecular Motor Functionalized with a Dithienylethene Switch.

Roke Diederik D Stuckhardt Constantin C Danowski Wojciech W Wezenberg Sander J SJ Feringa Ben L BL

Angewandte Chemie (International ed. in English) 20180615 33

A multiphotochromic hybrid system is presented in which a light-driven overcrowded alkene-based molecular rotary motor is connected to a dithienylethene photoswitch. Ring closing of the dithienylethene moiety, using an irradiation wavelength different from the wavelength applied to operate the molecular motor, results in inhibition of the rotary motion as is demonstrated by detailed <sup>1</sup> H-NMR and UV/Vis experiments. For the first time, a light-gated molecular motor is thus obtained. Fur ...[more]

PMID: 29806875

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