Cover Feature: Gas Permeation Through Mechanically Resistant Self‐Standing Membranes of a Neat Amorphous Organic Cage (chem. Eur. J. 56/2023)

Gas separation: A novel organic cage with excellent film-forming tendencies was processed into transparent, mechanically robust, self-standing membranes of controllable thickness. Thanks to their peculiar features, the membranes of the neat cage were successfully tested for gas permeation (e.g., with CO2), with behavior similar to that found with stiff glassy polymers such as polymers of intrinsic microporosity or polyimides being reported. More information can be found in the Research Article by J. C. Jansen, V. Amendola and co-workers (DOI: 10.1002/chem.202301437).