Assembly of Three Lanthanide Coordination Polymers from 2-(4-Carboxybenzyloxy) Benzoic Acid Ligand: Synthesis, Structure, and Fluorescent Properties.

Three new coordination polymers, {[Ln(cbb)(Hcbb)(DMF)·H2O] n , Ln = Sm (1), Eu (2), Tb(3), H2cbb = 2-(4-carboxybenzyloxy) benzoic acid, DMF = N , N -dimethylformamide}, have been synthesised by a solvothermal reaction and structurally characterised by infrared spectroscopy, elemental analysis, thermogravimetry analysis, and X-ray single-crystal diffraction. The results of single-crystal X-ray diffraction indicate that the coordination polymers 1 – 3 are isostructural, belong to a triclinic system, space group P -1, and show 1D chain structures through the H2cbb ligands connecting adjacent lanthanide ions. In addition, the fluorescence properties of polymers 1 – 3 were also investigated. Three coordination polymers ([Ln(cbb)(Hcbb)(DMF)·H2O] n [Ln = Sm (1), Eu (2), Tb (3)] have been synthesised based on 2-(4-carboxybenzyloxy) benzoic acid and the fluorescence properties have been investigated in detail. [ABSTRACT FROM AUTHOR]