由主体分子封端的轮烷：含联苯核心的金刚烷基化双咪唑盐的超分子行为
Rotaxanes Capped with Host Molecules: Supramolecular Behavior of Adamantylated Bisimidazolium Salts Containing a Biphenyl Centerpiece.
作者信息
Branná Petra, Rouchal Michal, Prucková Zdeňka, Dastychová Lenka, Lenobel René, Pospíšil Tomáš, Maláč Kamil, Vícha Robert
机构信息
Department of Chemistry, Tomas Bata University in Zlín, Faculty of Technology, Nám. T. G. Masaryka 275, 762 76 Zlín (Czech Republic).
Department of Protein Biochemistry and Proteomics, Palacký University, Faculty of Science, Centre of the Region Haná for Biotechnological and Agricultural Research, Šlechtitelů 27, 783 71 Olomouc-Holice (Czech Republic).
出版信息
Chemistry. 2015 Aug 10;21(33):11712-8. doi: 10.1002/chem.201501353. Epub 2015 Jul 3.
Bisimidazolium salts with one central biphenyl binding site and two terminal adamantyl binding sites form water-soluble binary or ternary aggregates with cucurbit[7]uril (CB7) and β-cyclodextrin (β-CD) with rotaxane and pseudorotaxane architectures. The observed arrangements result from cooperation of the supramolecular stopper binding strength and steric barriers against free slippage of the CB7 and β-CD host molecules over the bisimidazolium guest axle.
具有一个中心联苯结合位点和两个末端金刚烷基结合位点的双咪唑盐与葫芦[7]脲（CB7）和β-环糊精（β-CD）形成具有轮烷和准轮烷结构的水溶性二元或三元聚集体。观察到的排列是由于超分子封端剂结合强度以及CB7和β-CD主体分子在双咪唑盐客体轴上自由滑动的空间位垒之间的协同作用。
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