Hydrothermal synthesis and properties of a new 3D lanthanum supramolecule based on the 4-hydroxypyridine 2,6-dicarboxylate and water ligands |
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| Authors: | X. Feng Q. Q. Sun X. G. Shi L. Y. Wang J. S. Zhao |
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| Affiliation: | 1. College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang, 471022, P.R. China
2. College of Chemistry and Materials Science, Northwest University, Xi’an, 710069, P.R. China
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| Abstract: | A hydrogen-induced lanthanum complex, (HDMA)+[La(HCAM)2(H2O)3]? · 2H2O (I) (H3CAM = 4-hydroxypyridine-2,6-dicarboxylic acid, DMA = dimethylamine), has been synthesized in a H2O-DMF (DMF = dimethylformamide) mixed solution and characterized by elemental analysis, IR spectroscopy, and X-ray single-crystal diffraction. Complex I crystallizes in the triclinic system, space group P $ bar 1 $ a = 10.2755(11), b = 10.4507(11), c = 12.0016(13) Å, α = 92.3510(10)°, β = 92.980(4)°, γ = 117.2670(10)°, V = 1143.4(2) Å3, M r = 637.29, ρ c = 1.851 g/cm3, and Z = 2. The complex presents one-dimensional (ID) zigzag chain array, and these 1D chains are further linked into 3D supramolecular frameworks by extensive intra- and intermolecular hydrogen-bonding interactions. The luminescence emission spectra of the complex exhibits favorable fluorescent emission resulted from the ligand-to-metal electron transfer. |
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