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A nanometre-sized hexahedral coordination capsule assembled from 24 components

机译:由24个组件组装而成的纳米级六面体配位胶囊

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Molecular capsules consist of closed, hollow frameworks within which encapsulated molecules are isolated from interaction with external molecules. In this environment, otherwise reactive molecules can be stabilized. Although some molecular capsules have been prepared by conventional synthetic chemistry, recent progress in non-covalent synthesis has allowed the creation of capsules held together by hydrogen bonds. Here we report the use of transition-metal-based coordination chemistry to assemble a stable, nanometre-scale capsule from 24 small components: 18 metal ions and six triangular ligands. The capsule is roughly hexahedral and comprises six edge-sharing triangles with two metal ions on each edge. The internal space has a volume of 900 A~3 and is fully closed to all but very small molecules.
机译:分子胶囊由封闭的空心框架组成,在该框架中,被包封的分子与外界分子的相互作用被隔离。在这种环境下,否则反应性分子可以稳定下来。尽管已经通过常规合成化学方法制备了一些分子胶囊,但是非共价合成的最新进展已经允许通过氢键结合在一起的胶囊的产生。在这里,我们报告了基于过渡金属的配位化学的使用,它由24个小组件组装而成的稳定,纳米级的胶囊:18个金属离子和6个三角形配体。胶囊大致为六面体,包括六个边缘共享三角形,每个边缘上带有两个金属离子。内部空间的体积为900 A〜3,对除很小的分子以外的所有分子都完全封闭。

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