A twin-axial[5]pseudorotaxane based on cucurbit[8]uril and a-cyclodextrin  

作　　者：Li-Hua Wang Zhi-Jun Zhang Heng-Yi Zhang Hai-Lang Wu Yu Liu 

机构地区：[1]Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University

出　　处：《Chinese Chemical Letters》2013年第11期949-952,共4页中国化学快报（英文版）

基　　金：the National Basic Research Program of China (973 Program, No. 2011CB932500);the National Natural Science Foundation of China (Nos. 20932004 and 91227107) for fnancial support

摘　　要：A twin-axial hetero[5]pseudorotaxane was constructed based on 1-hexyl-4,40-bipyridinium guest 1 and cucurbit[8]uril（CB[8]）and a-cyclodextrin（a-CD）.In its structure,CB[8]included two bipyridinium units to realize the twin-axial mode,and the hexyl chain was threaded into the cavity of a-CD.The[5]pseudorotaxane contains two types of macrocyclic hosts while the single axial and twin axial modes co-exist in its structure.The transformation of[5]pseudorotaxane could be realized by the addition of acid and 2,6-dihydroxynaphthalene（HN）.A twin-axial hetero[5]pseudorotaxane was constructed based on 1-hexyl-4,40-bipyridinium guest 1 and cucurbit[8]uril（CB[8]）and a-cyclodextrin（a-CD）.In its structure,CB[8]included two bipyridinium units to realize the twin-axial mode,and the hexyl chain was threaded into the cavity of a-CD.The[5]pseudorotaxane contains two types of macrocyclic hosts while the single axial and twin axial modes co-exist in its structure.The transformation of[5]pseudorotaxane could be realized by the addition of acid and 2,6-dihydroxynaphthalene（HN）.

关 键 词：Pseudorotaxane Cucurbituril Cyclodextrin Self-assembly 

分 类 号：O621.3[理学—有机化学]