Cover Picture: Metal–Organic Frameworks with Target‐Specific Active Sites Switched by Photoresponsive Motifs: Efficient Adsorbents for Tailorable CO2 Capture (Angew. Chem. Int. Ed. 20/2019)

Smart adsorbents with target-specific active sites for selective CO2 capture are described by X.-Q. Liu, L.-B. Sun, and co-workers in their Communication on page 6600 ff. Amines were introduced into photoresponsive metal–organic frameworks (PMOFs) as active sites. The cis/trans isomerization of azobenzene motifs triggered by irradiation with UV/Vis light lead to exposure/shelter of the amines and modulation of CO2 adsorption on these active sites.