A series of lanthanide coordination polymers constructed from 4-pyridin-4-ylbenzoate

Abstract

Four lanthanide coordination polymers, LaL₃(H₂O)₂(1), LnL₂(µ₃-OH)(H₂O)[Ln=Eu(2),Tb(3)] and ErL₃·2H₂O(4) were synthesized via hydrothermal reactions of lanthanide oxide with 4-pyridin-4-ylbenzonic acid(HL), and characterized by means of elemental analyses, infrared(IR) spectrometer, powder X-ray diffraction(PXRD), thermogravimetric analyses(TGA) and single-crystal XRD. The results reveal that complex 1 possesses a linear chain structure, complexes 2 and 3 possess isostructural ladder-like chains, while complex 4 possesses a 2D layer with 4-connected sql topology. Furthermore, the luminescence properties and UV-Vis spectra of complexes 2 and 3 were investigated.

Keywords

Hydrothermal synthesis / Lanthanide / Luminescence property

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