Six isostructural lanthanide-containing MOFs built on a semi-rigid tripodal organic ligand

Six compounds show binodal node (3,6)-connected 2D layer with kgd topology. In which five MOFs show strong luminescence, the Pr-1 and the La-5 are slightly blue-shifted with respect to the ligand. Series of sharp peaks characteristic of the Eu-4, the Te-3 and Sa-6 metal-centered luminescence appear.174