Effective C₂H₂ Separation and Nitrofurazone Detection in a Stable Indium–Organic Framework

Based on the mixed carboxylate ligands synthesis strategy, an indium–organic framework, (Me 2 NH 2 ) 1.5 [In 1.5 (FBDC)(BDC)]·2.5NMF·CH 3 CN ( 1 ) has been constructed by using the mixed (2,5-di(2′,5′-dicarboxylphenyl)-difluorobenzene (H 4 FBDC) and terephthalic acid (H 2 BDC). Compound 1 contains a 3D intersecting pore system which surface is modified by F atoms, and it has excellent stability in pH = 2−12 aqueous solutions. The activated 1 shows high separation for C 2 H 2 /CO 2 and C 2 H 2 /CH 4 . Moreover, 1 not only has strong luminescence but also has the high selectivity and sensibility of fluorescence detection to nitrofurazone (NZF) in antibiotic sensing experiments, which can be used as a luminescence sensor for NZF detection.