文献类型：期刊文献

英文题名：Reversible Isomerization of Stiff-Stilbene by an Oriented External Electric Field

作者：Wang, Rui[1];Li, Yingjie[1];Yan, Siyu[1];Zhang, Zekai[1];Lian, Cheng[1];Tian, He[1];Li, Hongxiang[1]

机构：[1]East China Univ Sci & Technol, Feringa Nobel Prize Scientist Joint Res Ctr, Frontiers Sci Ctr Materiobiol & Dynam Chem, Sch Chem & Mol Engn,Key Lab Adv Mat,Inst Fine Chem, Shanghai 200237, Peoples R China

年份：2025

卷号：147

期号：3

起止页码：2841

外文期刊名：JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

收录：;EI(收录号：20250217674627);WOS:【SCI-EXPANDED(收录号:WOS:001395233500001)】；

基金：This work was supported by the National Natural Science Foundation of China (grant nos. 52273176, 22075080, and 22405088), the Science and Technology Commission of Shanghai Municipality (grant no. 24DX1400200), the Fundamental Research Funds for the Central Universities, and the East China University of Science and Technology.

语种：英文

外文关键词：Free radical reactions - Isomerization - Isomers - Spectroscopic analysis - Surface discharges

摘要：Understanding and effectively controlling molecular conformational changes are essential for developing responsive and dynamic molecular systems. Here, we report that an oriented external electric field (OEEF) is an effective catalyst for the cis-trans isomerization of stiff-stilbene, a key component of overcrowded alkene-based rotary motors. This reversible isomerization occurs under ambient conditions, is free from side reactions, and has been verified using ultraperformance liquid chromatography and UV-vis absorption spectroscopy. Low electric field promotes cis-to-trans conversion, and high electric field enables the reverse trans-to-cis process, demonstrating the precise reaction control through electric field manipulation. Density functional theory calculations reveal the mechanism of the electric-field-catalyzed cis-trans carbon-carbon double bond isomerization. Our findings provide a novel perspective on constructing OEEF-catalyzed, reversible molecular systems and pave the way for fully electrically driven artificial molecular machines.