Synthesis, structures and thermal properties of three new two-dimensional coordination networks assembled by lanthanide salts and carboxylate ligand |
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| Authors: | Chao Qin Lin Xu |
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| Affiliation: | Institute of Polyoxometalate Chemistry, Department of Chemistry, Northeast Normal University, Changchun 130024, PR China |
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| Abstract: | Three new rare-earth coordination polymers, [La2(PDC)2(NO3)2(H2O)3] (1) and [Dy(PDC)(ox)0.5(H2O)2] · H2O (2), and [Sm(PDC)(ox)0.5(H2O)2] · H2O (3) (H2PDC = pyridine-3,4-dicarboxylic acid, ox = oxalic acid), have been synthesized under hydrothermal conditions and characterized by elemental analysis, IR, TGA, and single-crystal X-ray diffraction. Of the three compounds, La-O-La and Dy(Sm)-O-C-O-Dy(Sm) chains are cross-linked by PDC ligands into interesting two-dimensional framework structures. They represent, to the best of our knowledge, the first examples of rare-earth complexes in the {M/PDC} (M = metal) system. |
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| Keywords: | Coordination polymer Carboxylate Hydrothermal synthesis Lanthanide |
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