Switchable V-type [2]pseudorotaxanes.
Switchable V-type [2]pseudorotaxanes.
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DOI：
10.1021/ol9011794
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发表时间：
2009-07
期刊：
影响因子：
5.2
通讯作者：
Hongyuan Zhang;Qiaochun Wang;Min-hua Liu;Xiang Ma;H. Tian
中科院分区：
文献类型：
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作者：
Hongyuan Zhang;Qiaochun Wang;Min-hua Liu;Xiang Ma;H. Tian
合成了一种含有2-[2-[4-（二甲氨基）苯基]乙烯基]吡啶菁分支和对氨基苯氧基乙基侧臂的V型分子，并以葫芦[7]脲（CB[7]）为模型丝，在水溶液中形成了完全不同的[2]类准轮烷.通过苯胺基的质子化，CB[7]环可以从花菁分支可逆地切换到氨基苯氧基乙基侧臂，并且溶液的颜色从橙子红变为黄色。
A V-type molecule comprising a 2-[2-[4-(dimethylamino)phenyl]ethenyl]pyridinium cyanine branch and a p-aminophenoxy ethyl side arm was synthesized and can form quite different [2]pseudorotaxanes with cucurbit[7]uril (CB[7]) as a model thread in aqueous solution. The CB[7] ring can be switched reversibly from the cyanine branch to the aminophenoxy ethyl side arm by protonation of the aniline group, and the color of the solution was changed from orange red to yellow.