Supramolecular structure of the polymeric Eu(III) complex with pyridine-2,6-dicarboxylic acid

The europium complex with pyridine-2,6-dicarboxylic acid forms three-dimensional polymers in the solid state. The crystal structure of this assembly shows that europium cation is nine-coordinated and the first coordination sphere contains four water molecules. Mono(dipicolinate) structural units are interconnected by bridging carboxylate oxygens to provide a compact supramolecular structure with a high density.

Graphical abstractThe europium complex with pyridine-2,6-dicarboxylic acid forms three-dimensional polymers in the solid state, where the europium cation is nine-coordinated by the ligand, two bridging carboxylate oxygens and four water molecules. Interconnecting of mono(dipicolinate) complexes by carboxylate oxygens results in a compact 3D supramolecular structure with a high density.Figure optionsDownload full-size imageDownload as PowerPoint slide