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[5]Rotaxane, linear polymer and supramolecular organic framework constructed by nor-seco-cucurbit[10]uril-based ternary complexation

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Chinese Chemical Letters 2023年第3期34卷 298-301页

作者： Pan-Qing Zhang Qian Li Ze-Kun Wang Qing-Xuan Tang Pei-Pei Liu Wen-Hao Li Guan-Yu Yang Bo Yang Da Ma Zhan-Ting Li College of Chemistry Zhengzhou UniversityZhengzhou 450001China Department of Chemistry Fudan UniversityShanghai 200438China School of Pharmaceutical and Materials Engineering &Institute for Advanced StudiesTaizhou UniversityJiaojiang 318000China

Here we use nor-seco-cucurbit[10]uril(ns-CB[10]) based ternary complexation to construct [5]rotaxane,linear supramolecular dynamic rotaxane polymers and cubic 3D supramolecular organic framework.A [5]rotaxane is constructed by ns-CB[10], TMe CB[6] and short linear derivatives of 4,4'-bipyridinium(M2). ns-CB[10], CB[7] and long linear derivatives of 4,4'-bipyridinium(M3) self-assemble into a linear supramolecular dynamic rotaxane polymer. ns-CB[10] and tetracationic tetrahedral monomer selfassemble and form a three-dimensional supramolecular organic framework. The above results demonstrate that ns-CB[10]-based ternary complexation is a versatile platform to build various supramolecular systems.

关键词： Rotaxane Linear polymer Supramolecular organic framework nor-seco-cucurbituril Ternary complexation

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Double-cavity nor-seco-cucurbit[10]uril-based supramolecular assembly for selective detection and removal of trinitrophenol

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中国化学快报:英文版 2023年第10期34卷 126-130页

作者： Ran Cen Ming Liu Jiao He Dingwu Pan Lixia Chen Ying Huang Zhu Tao Xin Xiao Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province School of Chemistry and Chemical EngineeringGuizhou UniversityGuiyang 550025China

The effective removal and selective detection of explosive and toxic pollutant trinitrophenol (TNP) is an attractive but challenging field.Herein,a double-cavity nor-seco-cucurbit[10]uril (ns-Q[10])-based supramolecular assembly 8-HQ@ns-Q[10]was fabricated and its structure was characterized by X-ray single crystal diffraction.In this assembly,the stoichiometric ratio of ns-Q[10]and 8-hydroxyquinoline (8-HQ) is 1:2,which is also attributed to the special double-cavity structure of ns-Q[10].The luminescence sensing experiments showed that 8-HQ@ns-Q[10]can be used as a good fluorescence-enhanced sensing material (enhanced 27-fold) for the rapid detection of explosives and the aqueous contaminant TNP,with a limit of detection (LOD) of 2.07×10^(-5)mol/L,without interference from other phenolic compounds.Furthermore,TNP can be efficiently removed in the presence of assembly 8-HQ@ns-Q[10],and the removal efficiency is more than 89%.Therefore,the supramolecular assembly 8-HQ@ns-Q[10],as a fluorescenceenhanced luminescence sensor and adsorption material,has rich research value and potential application prospect when applied to the detection and removal of TNP in aqueous environment.

关键词： nor-seco-cucurbituril 8-Hydroxyquinoline Supramolecularassembly 2,4,6-Trinitrophenol Removal Detection

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