Roke Diederik, Stuckhardt Constantin, Danowski Wojciech, Wezenberg Sander J, Feringa Ben L
Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands.
Angew Chem Int Ed Engl. 2018 Aug 13;57(33):10515-10519. doi: 10.1002/anie.201802392. Epub 2018 Jun 15.
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 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.
本文介绍了一种多光致变色混合体系，其中基于光驱动的过度拥挤烯烃的分子旋转马达与二噻吩乙烯光开关相连。使用与操作分子马达所应用的波长不同的照射波长使二噻吩乙烯部分发生闭环，如详细的¹H-NMR和UV/Vis实验所示，这会导致旋转运动受到抑制。由此首次获得了一种光控分子马达。此外，在连接二噻吩乙烯开关后，分子马达的激发波长从紫外区域红移至可见光区域。
