Zhu Jun-Long, Zhang Dawei, Ronson Tanya K, Wang Wenjing, Xu Lin, Yang Hai-Bo, Nitschke Jonathan R
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.
Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK.
Angew Chem Int Ed Engl. 2021 May 17;60(21):11789-11792. doi: 10.1002/anie.202102095. Epub 2021 May 4.
Here we report the subcomponent self-assembly of a truxene-faced Zn L tetrahedron, which is capable of binding the smallest hydrocarbons in solution. By deliberately incorporating inward-facing ethyl groups on the truxene faces, the resulting partially-filled cage cavity was tailored to encapsulate methane, ethane, and ethene via van der Waals interactions at atmospheric pressure in acetonitrile, and also in the amorphous solid state. Interestingly, gas capture showed divergent selectivities in solution and the amorphous solid state. The selective binding may prove useful in designing new processes for the purification of methane and ethane as feedstocks for chemical synthesis.
在此，我们报道了一种基于均三苯的锌L四面体的亚组分自组装，它能够在溶液中结合最小的碳氢化合物。通过在均三苯面上特意引入向内的乙基，所得的部分填充的笼状空腔经过设计，可在大气压下于乙腈溶液以及非晶态固态中通过范德华相互作用封装甲烷、乙烷和乙烯。有趣的是，气体捕获在溶液和非晶态固态中表现出不同的选择性。这种选择性结合可能在设计用于纯化作为化学合成原料的甲烷和乙烷的新方法中有用。
