A new [3 + 3] trimeric macrocycle, based on tetraphenylethylene having an aggregation-induced emission effect, could form a interdigitation molecular cage with a big void by host–guest interactions. The cage could accommodate two TNT molecules and detect TNT at the 1.7 fg level per mL of air. Moreover, the cage could give permanent pores that had a BET surface area of 347 m²/g and could adsorb 7.8 wt % CO₂ with high CO₂/N₂ selectivity up to 32 (273 K, 1 bar).

中文翻译：

---

四苯基乙烯三聚体大环的多孔交叉指状分子笼，显示出对空气中CO ₂和TNT蒸气的高度选择性吸附

一个新的[3 + 3]三聚体大环化合物，基于四苯乙烯，具有聚集诱导的发射效应，可以通过主体与客体的相互作用而形成一个具有大空隙的叉指型分子笼。笼子可容纳两个TNT分子，并在每毫升空气1.7 fg的水平下检测到TNT。此外，该笼子可以提供具有BET表面积347 m ² / g的永久孔，并且可以以高达32（273 K，1 bar）的高CO ₂ / N ₂选择性吸附7.8 wt％的CO ₂。