4 in 1: multifunctional europium–organic frameworks with luminescence sensing properties, white light emission, proton conductivity and reverse acetylene–carbon dioxide adsorption selectivity

Lanthanide-based MOFs with a flexible ligand demonstrate an array of properties: white light emission, excellent selectivity for sensing Fe 3+ and ofloxacin antibiotic, reverse adsorption selectivity in a CO 2 /C 2 H 2 mixture, and proton conductivity.