Supramolecular Self-Assembly of Cucurbit[6]uil and Ionic Liquid in Non-aqueous System

作     者：Xuzhuo Sun Bo Li Haibo Zhang Xiaohai Zhou 

作者机构：College of Chemistry and Chemical EngineeringHenan University of TechnologyZhengzhouHenan 450001China College of Chemistry and Molecular SciencesWuhan UniversityWuhanHubei 430072China 

出 版 物：《中国化学:英文版》 (Chinese Journal of Chemistry)

年 卷 期：2015年第33卷第4期

页      面：413-417页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学] 

基　　金：support by the National Natural Science Foundation of China(Nos.21202037,21401044) Doctor Fund of Henan University of Technology(No.2013BS066) 

主　　题：pseudorotaxanes non-aqueous system ionic liquid hydrogen bonds 

摘      要：A novel[2]pseudorotaxane of cucurbit[6]uril(CB[6])and 1-butyl-3-methyl-imidazolium bromide([C4mim]Br)was synthesized by directly mixing the host and the guest molecules in non-aqueous *** characteri-zations of the[2]pseudorotaxane were carried out by 1D,2D NMR and X-ray crystallography techniques both in solution and in crystal *** crystal structure demonstrated that CB[6]and[C4mim]Br formed a complex with the ratio 1∶1,in which one guest[C4mim]Br was included inside the CB[6],while two other[C4mim]Br molecules were free and surrounded the[2]pseudorotaxane as solvent molecules,which could stabilize the crystal structure through hydrogen ***,parallel solvent channels consisting by free[C4mim]Br molecules occupied the pores among the frame of the pseudorotaxanes and formed zigzag lines in the crystal structure.[C4mim]Br can serve as not only the guest reactant but also the solvent in the formation of[2]pseudorotaxane for-mation.