Self-Assembly of Hybrid Dendrons into Doubly Segregated Supramolecular Polyhedral Columns and Vesicles
Self-Assembly of Hybrid Dendrons into Doubly Segregated Supramolecular Polyhedral Columns and Vesicles
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DOI：
10.1021/ja104432d
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发表时间：
2010-08-18
影响因子：
15
通讯作者：
Percec, Virgil
中科院分区：
文献类型：
--
作者：
Peterca, Mihai;Imam, Mohammad R.;Percec, Virgil
报道了由 3 个含有 20 个第一代杂化树枝状分子的文库自组装的超分子树枝状聚合物的合成和结构分析。苄基醚、萘基甲基醚和联苯甲基醚重复单元与树枝顶端不同的烷基羧甲酸酯的组合将其分子立体角降低到导致发现新的自组装机制的值。这种新的自组装机制产生了多种前所未有的超分子组装体，包括空心和非空心的单或双分离的超分子柱和表现出多面体形状的囊泡。自组织超分子树枝状聚合物的多面体形状被证明是所有双偏析结构的固有特征。这里阐明的自组装机制提供了用于制造复杂超分子组织的新策略。
The synthesis and structural analysis of supramolecular dendrimers self-assembled from 3 libraries containing 20 first-generation hybrid dendrons are reported. Combinations of benzyl ether, naphthyl methyl ether, and biphenyl methyl ether repeat units with different alkyl cartxmlates at the apex of the dendron decreased its molecular solid angle to values that led to the discovery of a new mechanism of self-assembly. This new self-assembly mechanism generated a diversity of unprecedented supramolecular assemblies, including hollow and nonhollow singly or doubly segregated supramolecular columns and vesicles exhibiting polyhedral shapes. The polyhedral shape of the self-organized supramolecular dendrimers was demonstrated to be an intrinsic characteristic of all the doubly segregated structures. The self-assembly mechanism elucidated here provides access to new strategies that will be used to fabricate complex supramolecular organizations.