Abstract
Three new isostructural lanthanide coordination polymers {[Ln(L)2·2H2O]·Cl·4H2O}, Ln = La (LaL 1), Tb (TbL 2), Eu (EuL 3), L = 4-carboxy-1-(4-carboxybenzyl)pyridinium, have been synthesized under hydrothermal conditions and characterized by single crystal X-ray diffraction, IR, TG, PXRD, and luminescence. The solid-state luminescence properties of those Ln-CPs were investigated, realizing the zwitterionic ligand (L) is an excellent antenna chromophore for sensitizing both Tb3+ and Eu3+ ions. We utilized TbL 2 as a representative chemosensor to consider the potential luminescence sensing properties in different solvent suspension, which has the potential to serve as the first case of a luminescent Ln-CP material based on the zwitterionic type of organic ligand for selective and recyclable sensing of acetone in methanol solution.
Highlights
Over the last decade, lanthanide-based metal–organic coordination polymers (Ln-CPs), as novel luminescent functional materials, have attracted a good deal of attention
Ln-CPs based on the zwitterionic types of organic ligands have rarely been reported [18]
Further systematic investigation on the Ln-CPs based on the zwitterionic types of organic ligands is absolutely necessary
Summary
Lanthanide-based metal–organic coordination polymers (Ln-CPs), as novel luminescent functional materials, have attracted a good deal of attention. They have attracted this attention because of their diverse architectures, and because of their potential luminescent sensor applications for detecting cations [1,2], anions [3,4], small molecules [5], gases and vapors [6], biomolecules [7], temperature [8,9], and so on [10,11].
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