A luminescent metal-organic framework as an ideal chemosensor for nitroaromatic compounds

A luminescent two-dimensional metal-organic framework, [(Pr-2(TATMA)(2))center dot 4DMF center dot 4H(2)O](n) (1), was solvothermally synthesized based on the semi-rigid organic ligand 4,40',400"-s-triazine-1,3,5-triyltri-m-aminobenzoate (H(3)TATMA). 1 possesses binuclear {Pr-2(COO)(6)} subunits and fully deprotonated TATMA(3-) organic ligands, which can be further simplified into a 3,6-connected kgd topology with the Schlafli symbol of (4(3))(2)(4(6)center dot 6(6)center dot 8(3)). More importantly, 1 displays fast and reversible solid-state detection of nitroaromatic compounds, especially for TNP, via a luminescence response.