Song Xin, Zhu Xuefeng, Wu Shengfu, Chen Wenzhuo, Tian Wei, Liu Minghua
Shaanxi Key Laboratory of Macromolecular Science and Technology, MOE Key Laboratory of Material Physics and Chemistry Under Extraordinary Conditions, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University Xi'an, Shaanxi, China.
Beijing National Laboratory for Molecular Science (BNLMS), Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China.
Chirality. 2023 Oct;35(10):692-699. doi: 10.1002/chir.23567. Epub 2023 Apr 3.
Because of its dynamic reversible nature and simple regulation properties, rotaxane systems provided a good route for the construction of responsive supramolecular chiral materials. Here, we covalently encapsulate the photo-responsive guest molecule azobenzene (Azo) in a chiral macrocycle β-cyclodextrin (β-CD) to prepare self-locked chiral [1]rotaxane [Azo-CD]. On this basis, the self-adaptive conformation of [Azo-CD] was manipulated by solvent and photoirradiation; meanwhile, dual orthogonal regulation of the [1]rotaxane chiroptical switching could also be realized.
由于其动态可逆的性质和简单的调控特性，轮烷体系为构建响应性超分子手性材料提供了一条良好的途径。在此，我们将光响应客体分子偶氮苯（Azo）共价封装在手性大环β-环糊精（β-CD）中，制备了自锁手性[1]轮烷[Azo-CD]。在此基础上，通过溶剂和光辐照操纵了[Azo-CD]的自适应构象；同时，还实现了[1]轮烷手性光开关的双正交调控。
