An intrinsically porous trianglimine macrocycle 1 is reported to display energy-efficient and cost-effective adsorptive properties by selectively separating cis-1,2-dichloroethene (cis-DCE) from an equimolar cis- and trans-DCE mixture with a purity of over 96%. The selectivity is enhanced by host/guest C–H⋯π intermolecular interactions. Moreover, the macrocycle can be reused many times without any decrease in performance, which further supports the sustainability of using molecular sieves in chemical separation.

中文翻译：

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顺式-反式-1,2-二氯乙烯异构体的高选择性分子筛分

据报道，本征多孔 trianglimine 大环1通过从纯度超过 96的等摩尔顺式和反式-DCE 混合物中选择性分离顺式-1,2-二氯乙烯 ( cis -DCE)来显示节能和经济高效的吸附性能%。选择性通过主客体 C-H⋯π 分子间相互作用增强。此外，大环可以多次重复使用而不会降低性能，这进一步支持了分子筛在化学分离中的可持续性。