Synthesis, structures, and photoluminescent properties of 3D lanthanide coordination polymers with rare (4,5)-connected topology |
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Authors: | Guo-Xin Zhang Wei Zhang Zheng-Bo Han |
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Affiliation: | aCollege of Chemistry, Liaoning University, Shenyang 110036, PR China |
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Abstract: | Three lanthanide coordination polymers, [Ln(Hpdc)(ox)0.5(H2O)2]·H2O (Ln = Nd(1), Eu(2), Er(3)) (H3pdc = 3,5-pyrazoledicarboxylic acid, ox = oxalate), have been synthesized by the hydrothermal reaction of lanthanide nitrates, 3,5-pyrazoledicarboxylic acid, and oxalic acid (H2ox) and characterized by elemental analysis, IR, and single-crystal X-ray diffraction. Single-crystal X-ray diffraction studies indicate that complexes 1–3 are isomorphous and exhibit three-dimensional metal–organic frameworks with uncommon (4,5)-connected topology, which contain open channels occupied by the lattice water molecules. The photoluminescent properties of complex 2 were also studied. |
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Keywords: | Coordination polymer Hydrothermal synthesis Lanthanide Photoluminescent properties |
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