Highly selective luminescence sensing of nitrite and benzaldehyde based on 3d–4f heterometallic metal–organic frameworks†
Abstract
Framework-isomeric three-dimensional (3D) Zn–Ln heterometallic metal–organic frameworks, {[Ln2Zn(abtc)2(H2O)4]·2H2O}∞ {Ln = Sm(1), Tb(2)}, were synthesized using a convenient solvothermal reaction. They can serve as excellent sensors for the specific identification of benzaldehyde and NO2− through a fluorescence quenching process.