Chen Jiawen, Vachon Jérôme, Feringa Ben L
Stratingh Institute for Chemistry , University of Groningen , Nijenborgh 4 , 9747AG Groningen , The Netherlands.
J Org Chem. 2018 Jun 1;83(11):6025-6034. doi: 10.1021/acs.joc.8b00654. Epub 2018 May 15.
The design of a multicomponent system that aims at the direct visualization of a synthetic rotary motor at the single molecule level on surfaces is presented. The synthesis of two functional motors enabling photochemical rotation and fluorescent detection is described. The light-driven molecular motor is found to operate in the presence of a fluorescent tag if a rigid long rod (32 Å) is installed between both photoactive moieties. The photochemical isomerization and subsequent thermal helix inversion steps are confirmed by H NMR and UV-vis absorption spectroscopies. In addition, the tetra-acid functioned motor can be successfully grafted onto amine-coated quartz and it is shown that the light responsive rotary motion on surfaces is preserved.
本文介绍了一种多组分系统的设计，该系统旨在在表面的单分子水平上直接可视化合成旋转马达。描述了两种实现光化学旋转和荧光检测的功能性马达的合成。如果在两个光活性部分之间安装一个刚性长杆（32 Å），则发现光驱动分子马达在存在荧光标签的情况下运行。通过核磁共振氢谱（H NMR）和紫外可见吸收光谱证实了光化学异构化和随后的热螺旋反转步骤。此外，四酸功能化的马达可以成功接枝到胺涂层石英上，并且表明表面上的光响应旋转运动得以保留。
