Fig. 1: Strategies for achieving the selective adsorption of Kr over Xe.
From: Krypton/Xenon separation at room temperature in a flexible coordinative framework sorbent
a Previous studies documented in the literature, including three examples to date, have been associated with the mechanism of linker rotation-induced local flexibility observed under cryogenic conditions (temperatures below 273 K). Notably, all three materials selectively adsorb Xe over Kr at room temperature. b Current work associated with synergistic framework dynamics and local flexibility observed at room temperature.
