文献类型：期刊文献

英文题名：Aspect ratio-dependent twisting motions in photomechanical molecular crystal ribbons via solid-state [2+2] photodimerization

作者：Qiu, Xiao-Dong[1];Lu, Jun[1];Qu, Da-Hui[1];Tong, Fei[1]

机构：[1]East China Univ Sci & Technol, Feringa Nobel Prize Scientist Joint Res Ctr, Frontiers Sci Ctr Materiobiol & Dynam Chem, Inst Fine Chem,Sch Chem & Mol Engn,Key Lab Adv Mat, Meilong Rd 130, Shanghai 200237, Peoples R China

年份：2026

外文期刊名：CHEMICAL COMMUNICATIONS

收录：;EI(收录号：20261520468791);WOS:【SCI-EXPANDED(收录号:WOS:001734546300001)】；

基金：This work is supported by the National Natural Science Foundation of China (22375063, 22405089, and 22220102004), the Fundamental and Interdisciplinary Disciplines Breakthrough Plan of the Ministry of Education of China (JYB2025XDXM404), the Science and Technology Commission of Shanghai Municipality (24DX1400200 and 23JC1401700), the CNPC Innovation Fund (2024DQ02-0410), the Programme of Introducing Talents of Discipline to Universities (B16017) and the Fundamental Research Funds for the Central Universities. The authors also thank the Analysis and Testing Centre of East China University of Science and Technology for help with the material characterization.

语种：英文

外文关键词：Single crystals

摘要：Dynamic single-crystal ribbons based on a photoactive divinylphenyl derivative (MCPD) exhibit aspect ratio (delta, defined as length-to-width ratio)-dependent twisting motions under visible light irradiation. This crystal twisting is driven by solid-state [2+2] photodimerization, which can enable a single-crystal-to-single-crystal (SCSC) transformation in high-aspect-ratio ribbons and generate single crystals of the photodimer.