Guest releasing from solution to solid-state triggered by cyclomaltohexaose (α-cyclodextrin) aggregation

被引：5
|
作者：
Gu, Zhuo-Yi [1 ]
Guo, Dong-Sheng [1 ]
Liu, Yu [1 ]
机构：
[1] Nankai Univ, Dept Chem, State Key Lab Elemento Organ Chem, Tianjin 300071, Peoples R China
来源：
CARBOHYDRATE RESEARCH | 2010年 / 345卷 / 18期
关键词：
Cyclomaltohexaose; Azodipyridines; Single crystal; Aggregation; BETA-CYCLODEXTRIN; CRYSTAL-STRUCTURES; ASSEMBLY BEHAVIOR; COMPLEXES; RECOGNITION; BINDING; THERMODYNAMICS; ROTAXANES;
D O I：
10.1016/j.carres.2010.09.030
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
Supramolecuar aggregations 1 and 2 were prepared by complexing cyclomaltohexaose with two azodipyridine isomers 4 4'-azodipyridine and 2 2'-azodipyridine and their binding abilities and assembly behaviors were investigated comprehensively by X-ray crystallography 2D NMR spectroscopy and isothermal titration calorimetry In solution 1 1 host-guest complexation is generally assumed whereas in the solid state a 2 1 stoichiometry is observed Crystal structures reveal that channel-type aggregation exists in complex 1 while a layer-type manner is the dominant packing mode in complex 2 The disparity of nitrogen atom position leads to the different binding modes and further affects the aggregation types in complexes 1 and 2 (C) 2010 Elsevier Ltd All rights reserved
引用
收藏
页码：2670 / 2675
页数：6
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