Hu Xiangquan, Han Meirong, Shao Li, Zhang Chen, Zhang Le, Kelley Steven P, Zhang Chi, Lin Jian, Dalgarno Scott J, Atwood David A, Feng Sisi, Atwood Jerry L
Department of Chemistry, University of Missouri, 601 S. College Ave., Columbia, MO, 65211, USA.
Key Laboratory of Chemical Biology, Molecular Engineering of Ministry of Education, Institute of Molecular Science, Shanxi University, Taiyuan, 030006, China.
Angew Chem Int Ed Engl. 2021 May 3;60(19):10516-10520. doi: 10.1002/anie.202016077. Epub 2021 Mar 24.
We report the synthesis of a novel metal-organic capsule constructed from six pyrogallol[4]arene macrocycles, which are switched together by 16 Fe and 16 Co ions. This supramolecular structure is the first instance of a spheroidal heterometallic nanocage assembled through a one-step metal-ligand coordination approach. This new assembly also demonstrates an important proof of concept through the formation of multiple heterometallic metal-metal interactions within the capsule framework. Photophysical and electrochemical studies of self-assembled capsule films indicate their potential as semiconductors. These materials display unexpected photoelectric conversion properties, thus representing an emergent phenomenon in discrete metal-organic supramolecular assemblies.
我们报道了一种由六个连苯三酚[4]芳烃大环构建的新型金属有机胶囊的合成，这些大环通过16个铁离子和16个钴离子连接在一起。这种超分子结构是通过一步金属-配体配位方法组装的球形异金属纳米笼的首个实例。这种新的组装体还通过在胶囊框架内形成多个异金属金属-金属相互作用，展示了一个重要的概念验证。自组装胶囊薄膜的光物理和电化学研究表明它们具有作为半导体的潜力。这些材料表现出意想不到的光电转换特性，因此代表了离散金属有机超分子组装体中的一种新出现的现象。
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