Journal
JOURNAL OF MOLECULAR STRUCTURE
Volume 1145, Issue -, Pages 10-17Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.molstruc.2017.05.055
Keywords
Crystal growth; Luminescence; Solvothermal; X-ray diffraction; Crystal structure
Categories
Funding
- PRODEP [40843]
- DGAPA-PAPIIT project [IN218917]
- CONACyT project [CB-178851]
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Three lanthanide complexes, [H2NMe2](3)[Ln(III)(2,6-pyridinedicarboxylate)(3)] (Ln = Sm, Eu, Tb) have been successfully synthesized using a solvothermal method in the presence of a base and they were prepared from inexpensive and readily available reactants. Infrared, ultraviolet visible absorption spectroscopies, elemental analyses and thermogravimetric analysis were employed for the characterization. Crystals suitable for X-ray diffraction were isolated in good yields by a simple filtration, their crystal structures were analyzed; the samarium structure has orthorhombic symmetry with space group Pbcn, exhibiting three-dimensional supramolecular architecture through hydrogen bonding interactions. The metal center is coordinated to nine atoms corresponding to three pyridine-2,6-dicarboxylic acid molecules. These compounds are thermally stable up to 270 C. Published by Elsevier B.V.
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