3D lanthanide metal-organic frameworks constructed from 2,6-naphthalenedicarboxylate ligand: synthesis, structure, luminescence and dye adsorption

A series of novel isostructural 2, 4, 5-connected 3D lanthanide metal-organic frameworks (Ln-MOFs) 1-8 with Schäfli symbol of (42.62.82)2(42.63.85)2(6) have been synthesized under solvothermal conditions, exhibiting a rhombic channel along the b axis. Compound 1 displays excellent fluorescence sensing for organic solvent small molecules and the activated compound 2 exhibits good adsorption capacity for organic dyes in water, especially for crystal violet.218