Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom.
Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai 200062, P. R. China.
J Am Chem Soc. 2020 May 20;142(20):9152-9157. doi: 10.1021/jacs.0c03798. Epub 2020 May 6.
Transformations between three-dimensional metallosupramolecular assemblies can enable switching between the different functions of these structures. Here we report a network of such transformations, based upon a subcomponent displacement strategy. The flow through this network is directed by the relative reactivities of different amines, aldehydes, and di(2-pyridyl)ketone. The network provides access to an unprecedented heteroleptic Cd twisted trigonal prism. The principles underpinning this network thus allow for the design of diverse structural transformations, converting one helicate into another, a helicate into a tetrahedron, a tetrahedron into a different tetrahedron, and a tetrahedron into the new trigonal prismatic structure type. The selective conversion from one host to another also enabled the uptake of a desired guest from a mixture of guests.
三种金属超分子组装体之间的转变能够实现这些结构之间不同功能的切换。在此，我们基于亚组分置换策略报道了这样一个网络。该网络的流动由不同胺、醛和二(2-吡啶基)酮的相对反应性所控制。该网络提供了一种前所未有的异双核 Cd 扭曲三角棱柱的途径。因此，该网络所基于的原理允许设计各种结构转变，将一种螺旋体转化为另一种螺旋体，将一种螺旋体转化为四面体，将一种四面体转化为另一种四面体，将一种四面体转化为新的三角棱柱结构类型。从一种主体选择性地转化为另一种主体也能够使期望的客体从客体混合物中被吸收。
