Channel‐Pocket Ultra‐Micropore Configuration in a Hydrogen‐Bonded Organic Framework for Simultaneous High Xe Capture and Xe/Kr Separation

) and record Xe/Kr selectivity (23.5) at 298 K and 1 bar, surpassing all the reported porous organic materials. The adsorption binding of Xe and Kr was visualized by gas-loaded ZJU-HOF-6a crystal structures. Breakthrough experiments demonstrate its exceptional separation capacities for actual Xe/Kr mixtures under ambient conditions, affording the record-high dynamic selectivity (13.7) among porous organic materials.