Here,we report a new ortho-phenylene-spaced oligourea receptor,L^(1),functionalized at its termini with photoresponsive azobenzene units.This peripheral design minimizes steric constraints,increasing conformational fr...Here,we report a new ortho-phenylene-spaced oligourea receptor,L^(1),functionalized at its termini with photoresponsive azobenzene units.This peripheral design minimizes steric constraints,increasing conformational freedom and enabling dynamic responsiveness.Complexation of L^(1)with diverse anions(HPO_(4)^(2−),PO_(4)^(3−),SO_(4)^(2−),Cl^(−),Br^(−))affords stable assemblies(EE-1 to EE-7),and demonstrates robust reversible photoresponse.The distinct photo-dynamic responses elicited by different anions offer new insights for the design of advanced supramolecular photo-reversible materials.展开更多
基金support of the National Natural Science Foundation of China(22471215,22171226)the Natural Science Basic Research Program of Shaanxi(2025JC-QYCX-009)+2 种基金the Natural Science Foundation of Science and Technology Agency of Shanxi Province(202303021212149)the 1331 Project of Shanxi Province,the Youth Project of Science and Technology Department of Shaanxi Province(2024JC-YBQN-0159 and 2024JC-YBQN-0133)the Funding for Scientific Research of Shangluo University(Grant No.22SKY116).
文摘Here,we report a new ortho-phenylene-spaced oligourea receptor,L^(1),functionalized at its termini with photoresponsive azobenzene units.This peripheral design minimizes steric constraints,increasing conformational freedom and enabling dynamic responsiveness.Complexation of L^(1)with diverse anions(HPO_(4)^(2−),PO_(4)^(3−),SO_(4)^(2−),Cl^(−),Br^(−))affords stable assemblies(EE-1 to EE-7),and demonstrates robust reversible photoresponse.The distinct photo-dynamic responses elicited by different anions offer new insights for the design of advanced supramolecular photo-reversible materials.
