Study on the Effect of Host-Guest Based on the Dimethoxy-pillar[5]arene and Benzazole Heterocyclic Compounds

Abstract

A host-guest system was successfully constructed from dimethoxypillar[5]arene (DMP5) and six guest molecules benzoazolidazole (G2), benzimidazole (G3) and benzothiazole (G1, G4, G5 and G6) via host-guest interactions and characterized by various techniques, including HRMS and 1 H NMR spectra. The result shows that heterocyclic compound was threaded into the cavity of pillar [5]arene to obtain host-guest system between DMpillar[5]arene and benzazole, forming inclusion complexes. Interestingly, the corresponding guest containing benzazole formed a stable host-guest complex with the same host. Moreover, the addition of guest compounds led to the effective reinforcement of the fluorescence intensity compared with the original guest species and the host (DMP5) that giving an additional support for the host-guest interaction based supramolecular assembly nature of the present system.

Construction of Cyclodextrin/Aminoclay-Based Supramolecular Hydrogel and Its I3-/I2 Adsorption Property

“…超分子化学是以分子识别为基础, 利用非共价键 "自下而上"地构筑具有不同功能和性质的分子组装 体系. 这种"自下而上"的设计方法在构筑纳米尺度的 分子机器中得到了广泛应用 [17,18] , 同时还可以有效地降 低目标体系的合成难度 [19,20] , 并且所构筑的超分子体系 往往具备刺激响应的重要性质 [21～24] . 因此, 将超分子化 学方法引入到水凝胶制备中将会为设计合成具有特定 功能的水凝胶体系 [25] 提供了新的思路.…”