A Metallo-molecular Cage That Can Close the Apertures with Coordination Bonds

被引：63
作者：
Akine, Shigehisa [1 ]
Miyashita, Masato [2 ]
Nabeshima, Tatsuya [2 ]
机构：
[1] Kanazawa Univ, Grad Sch Nat Sci & Technol, Kakuma Machi, Kanazawa, Ishikawa 9201192, Japan
[2] Univ Tsukuba, Fac Pure & Appl Sci, 1-1-1 Tennodai, Tsukuba, Ibaraki 3058571, Japan
来源：
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2017年 / 139卷 / 13期
关键词：
HEMICARCERAND; RECOGNITION; COMPLEXES; METALLOCRYPTAND; ENCAPSULATION; DISCRETE; SYMMETRY; EXCHANGE; DESIGN; LIGAND;
D O I：
10.1021/jacs.7b00840
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We designed a novel tricobalt(III) metallomolecular 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.
引用
收藏
页码：4631 / 4634
页数：4
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