Porous Interdigitation Molecular Cage from Tetraphenylethylene Trimeric Macrocycles That Showed Highly Selective Adsorption of CO2 and TNT Vapor in Air

• DOI: 10.1021/acs.orglett.7b03483
• Publication Date: 2018-01-09T20:13:30Z
• Authors: Jia-Bin Xiong; Jin-Hua Wang; Bao Li; Chun Zhang; Bien Tan; Yan-Song Zheng
• Keywords: 0301 basic medicine; 03 medical and health sciences; 7. Clean energy

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).