Department of Chemistry, University of Cambridge , Lensfield Road, Cambridge CB2 1EW, United Kingdom.
J Am Chem Soc. 2017 Aug 16;139(32):11008-11011. doi: 10.1021/jacs.7b05788. Epub 2017 Aug 2.
A porphyrin-edged metal-organic tetrahedron forms host-guest complexes containing 1-4 equiv of fullerene C, depending on the solvent employed. The molecules of C were bound anticooperatively within well-defined pockets; an X-ray crystal structure of three fullerenes inside the tetrahedron was obtained. Electrochemical measurements revealed that the electron-accepting properties of the fullerenes inside the capsules were altered depending on the mode of encapsulation. The binding of multiple fullerenes was observed to increase the electron affinity of the overall cluster, providing a noncovalent method of tuning fullerene electronics.
一个卟啉边缘的金属有机四面体形成主客体配合物，包含 1-4 当量的富勒烯 C，这取决于所使用的溶剂。C 的分子在明确定义的口袋内以反协同方式结合；获得了四面体内三个富勒烯的 X 射线晶体结构。电化学测量表明，胶囊内富勒烯的电子接受性质取决于封装方式而改变。观察到多个富勒烯的结合增加了整体簇的电子亲和力，提供了一种非共价方法来调整富勒烯的电子性质。
