Synthesis and fluorescence property of a new Tb-based metal-organic framework

Abstract

A new 3D Terbium (III) metal-organic framework has been solvothermally synthesized by using terbium ion as the metal center and 1,1[Formula: see text],1[Formula: see text]-(2,4,6-trimethylphenyl-1,3,5-tri) trimethyl tritrium (4-carboxylpyridyl) tribromide (H3LBr3) as ligand. The molecular formula is [Tb(H3LBr3) (OH)2](NO3)●(DMAC)3. Compound crystallizes in the triclinic system, space group [Formula: see text], with [Formula: see text], [Formula: see text], [Formula: see text][Formula: see text]Å, [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text][Formula: see text]Å3, [Formula: see text], [Formula: see text], [Formula: see text][Formula: see text]g/cm3, [Formula: see text][Formula: see text]mm[Formula: see text], [Formula: see text], [Formula: see text] and [Formula: see text] for 7586 observed reflections ([Formula: see text] (I)). Meanwhile, the fluorescence property was also studied. The result shows that the synthesized Tb-MOF displays highly selective sensing of acetone.