Synthesis, structural characterization, and fluorescence of a series of 1D rare earth coordination polymers with a substituted iminodiacetate ligand

Lymperopoulou, Smaragda, Lazarides, Theodore, Papachristodoulou, Christina, Raptopoulou, Catherine P., Psycharis, Vassilis and Plakatouras, John C. (2018) Synthesis, structural characterization, and fluorescence of a series of 1D rare earth coordination polymers with a substituted iminodiacetate ligand. Inorganica Chimica Acta, 472, 276-282. (doi:10.1016/j.ica.2017.06.048).

Abstract

The combination of the polycarboxylic ligand N-(4-carboxy-benzyl)iminodiacetic acid (LH₃) with rare earth (RE) chlorides under hydrothermal conditions leads to the formation of 1D cationic coordination polymers formulated as {[RE(LH₂)₂(H₂O)₄]Cl}_n [where RE = Y (1), Eu (2), Tb (3) and Yb (4)]. All compounds are isostructural and characterized with IR spectroscopy, and thermal (TG) studies. Compounds 1, 2 and 4 were characterized with single crystal X-ray diffraction while 2 and 3 with fluorescence spectroscopy. The ligand utilizes only two of the available for coordination carboxylates and the crystal structures are stabilized by an extended array of H-bonds that gives rise to a 3D supramolecular architecture.

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Contributors

Author: Smaragda Lymperopoulou

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