Rücktitelbild: Optimizing Acetylene Sorption through Induced‐fit Transformations in a Chemically Stable Microporous Framework (Angew. Chem. 7/2023)

Optimizing acetylene (C2H2) sorption through induced-fit transformations of a metal–organic framework has been achieved. In their Research Article (e202215253), Qihui Chen, Daqiang Yuan, Maochun Hong, and co-workers describe the preparation of an adaptive ultramicroporous framework that effectively captures C2H2 with a record-high storage density but a very low adsorption enthalpy. Mechanistic studies demonstrate that the excellent adsorption performance is due to the synergism of active sites, a flexible framework, and matched pores.