文献类型：期刊文献

英文题名：Size Reduction to Enhance Crystal-to-Liquid Phase Transition Induced by E-to-Z Photoisomerization Based on Molecular Crystals of Phenylbutadiene Ester

作者：Li, Yu-Hao[1,2];Cui, Min[1,2];Gong, Yi[1,2];Xu, Tian-Yi[1,2];Tong, Fei[1,2]

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, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]Mol Engn East China Univ Sci & Technol, Feringa Nobel Prize Scientist Joint Res Ctr, Frontiers Sci Ctr Materiobiol & Dynam Chem, Sch Chem,Joint Int Res Lab Precis Chem & Mol Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2024

卷号：17

期号：15

外文期刊名：MATERIALS

收录：;EI(收录号：20243316864112);WOS:【SCI-EXPANDED(收录号:WOS:001287843900001)】；

基金：This research was funded by the National Natural Science Foundation of China (NSFC) (grant no. 22105071 and 22375063), the Science and Technology Commission of Shanghai Municipality (grant no. 22ZR1417100 and 23JC1401700), and the Fundamental Research Funds for the Central Universities.

语种：英文

外文关键词：crystal engineering; molecular crystals; photoinduced melting; nanomaterials

摘要：Harnessing the photoinduced phase transitions in organic crystals, especially the changes in shape and structure across various dimensions, offers a fascinating avenue for exact spatiotemporal control, which is crucial for developing future smart devices. In our study, we report a new photoactive molecular crystal made from (E)-2-(3-phenyl-allylidene)malonate ((E)-PADM). When exposed to ultraviolet (UV) light at 365 nm, this compound experiences an E-to-Z photoisomerization in liquid solution and a crystal-to-liquid phase transition in solid crystals. Remarkably, nanoscopic crystalline rods boost their melting rate and degree compared to bulk crystals, indicating that miniaturization enhances the photoinduced melting effect. Our results demonstrate a simple approach to rapidly drive molecular crystals into liquids via photochemical reactions and phase transitions.