Three-dimensional lanthanide coordination polymers with p-phenylenediacrylates: Syntheses, structures, and properties
2012
Abstract Three three-dimensional lanthanide coordination polymers [Ln 2 (pda) 2 (HCOO)(OH)(H 2 O)] n (Ln = Dy, 1 ; Tb, 2 ; Ho, 3 ; H 2 pda = p -phenylenediacrylic acid) have been solvothermally synthesized and their structures have been determined using either X-ray powder or single-crystal diffraction data. They are isostructural and possess a 3D architecture with the pcu (α-Po) net topology based on the parallel 1D lanthanide–oxygen rod-shaped secondary building units, each of which is connected to four other rods by the pda ligands. The photoluminescent properties of 1 – 3 have been investigated. Complexes 1 – 3 all display the intense blue emission in the solid state at room temperature. Especially, compared with the free H 2 pda ligands, 1 shows the strong fluorescence enhancement due to the complexation.
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