title: Cd(II)-MOF: adsorption, separation, and guest-dependent luminescence for monohalobenzenes.
abstract: A series of isostructural 2-fold interpenetrating 2D Cd(II)-MOFs, namely G⊂CdL2(OTs)2 (G = THF (1), PhF (2), PhCl (3), PhBr (4), PhI (5), L = 1,2-bis[(3-(pyridin-4-yl)phenoxy]ethane, and OTs(-) = p-toluenesulfonate anion), have been successfully synthesized from the flexible ethylene glycol ether-bridging ligand L and Cd(OTs)2 in solution. The CdL2(OTs)2 framework contains squarelike nonpolar channels, and the encapsulated guest molecules can be removed by heating (150 °C) to generate a guest-free host framework which is able to reversibly adsorb monohalobenzenes PhX (X = F, Cl, Br, I) in the liquid phase under ambient conditions without loss of framework integrity. Furthermore, it can effectively separate these monohalobenzenes and exhibits a clear affinity for monohalobenzenes according to the following order: PhI > PhBr > PhCl > PhF. In addition, PhX⊂CdL2(OTs)2 exhibits guest-dependent luminescence properties.
authors.affiliation: College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University , Jinan 250014, People's Republic of China.
authors.forename: Lei
authors.initials: L
authors.lastname: Wang
authors.forename: Yan-An
authors.initials: YA
authors.lastname: Li
authors.forename: Fan
authors.initials: F
authors.lastname: Yang
authors.forename: Qi-Kui
authors.initials: QK
authors.lastname: Liu
authors.forename: Jian-Ping
authors.initials: JP
authors.lastname: Ma
authors.forename: Yu-Bin
authors.initials: YB
authors.lastname: Dong
mesh_terms: D000327:Adsorption; D001554:Benzene / Q000737:chemistry*; D002104:Cadmium / Q000737:chemistry*; D006219:Halogens / Q000737:chemistry*; D049449:Luminescence; D066244:Proton Magnetic Resonance Spectroscopy; D013055:Spectrophotometry, Infrared
chemical_list: D006219:Halogens; D002104:Cadmium; D001554:Benzene