光调控有机修饰多金属氧簇复合物的主客体识别

摘要

利用离子交换的方法实现对偶氮苯共价修饰Anderson型多金属氧簇反离子的替换和相转移。通过核磁共振氢谱及其相关谱和紫外-可见吸收光谱，对制备的杂化多阴离子在水溶液中的光致异构化行为进行了研究。在此基础上，研究了杂化多金属氧簇在水溶液体系中与β-环糊精(β-CD)之间的主客体包结相互作用。通过不同波长的光交替辐照，实现了杂化多阴离子客体与环糊精主体之间的可逆识别。%By ion exchange method, we realized the counter ion substitution and phase transfer of an azoben-zene covalently modified Anderson polyoxometalate. The photoisomerization behavior of the prepared complex was investigated through 1 H NMR and UV-Vis spectra in the aqueous solution. Base on the above results, we studied the inclusion interactions between the organic modified polyoxometalate and cyclodextrin in the aqueous solution, and realized the reversible recognition and dissociation between hybrid supramolecular guest and cyclodextrin with irradiations by various wavelengths.