A Metallo-molecular Cage That Can Close the Apertures with Coordination Bonds,Journal of the American Chemical Society

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A Metallo-molecular Cage That Can Close the Apertures with Coordination Bonds
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2017-03-24 , DOI: 10.1021/jacs.7b00840
Shigehisa Akine ₁ , Masato Miyashita ₂ , Tatsuya Nabeshima ₂

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We designed a novel tricobalt(III) metallo-molecular cage in which its apertures can be closed with bifunctional ligands via coordination bonds. A closed-cage complex was easily formed by ligand exchange of its open-cage analogue. Guest uptake/release by the open-cage complex was sufficiently fast to quickly reach guest-binding equilibrium, while that by the closed-cage complex was extremely slow and took about 1 week to reach equilibrium. The guest uptake was retarded by at least 2000 times by introduction of the bifunctional ligands at the cage apertures.

中文翻译：

一种可以用配位键关闭孔的金属分子笼

我们设计了一种新型三钴 (III) 金属分子笼，其中的孔可以通过配位键与双功能配体闭合。通过其开笼类似物的配体交换很容易形成闭笼复合物。开笼复合物的客体吸收/释放足够快以快速达到客体结合平衡，而封闭笼复合物的客体吸收/释放非常缓慢，需要大约 1 周才能达到平衡。通过在笼孔处引入双功能配体，客体吸收被延迟了至少 2000 倍。

更新日期：2017-03-24

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