Pillar[5]arene-Based Supramolecular Organic Frameworks for Highly Selective CO2-Capture at Ambient Conditions

Graphical Low-density, solid-state, porous supramolecular organic frameworks are constructed using pillarenes. The frameworks have a honeycomb-like structure, permanent porosity, high thermal stability, and selective and reversible sorption properties toward CO 2 . The exceptionally selective CO 2 -sorption properties (375/1, 339/1) of one framework over N 2 and CH 4 indicate potential applications in CO 2 -capture for post-combustion power plants and natural gas sweetening.