Abstract
In the title compound, [Eu2(C6H5NO3)2(C2O4)3(H2O)4]n, the EuIII atom is bonded to one O atom from a monodentate 5-hydroxypyridin-1-ium-3-carboxylate ligand, six O atoms from three oxalate ligands and two water molecules, exhibiting a highly distorted tricapped trigonal geometry. Three independent oxalate ligands, each lying on an inversion center, bridge the EuIII atoms, forming a brickwall-like layer parallel to (001), which is stabilized by intralayer O—H⋯O hydrogen bonds. The layers are further linked through interlayer O—H⋯O and N—H⋯O hydrogen bonds and π–π interactions between the pyridine rings [centroid–centroid distance = 3.5741 (14) Å] into a three-dimensional supramolecular network.
Highlights
EuIII atom is bonded to one O atom from a monodentate 5hydroxypyridin-1-ium-3-carboxylate ligand, six O atoms from three oxalate ligands and two water molecules, exhibiting a highly distorted tricapped trigonal geometry
Each lying on an inversion center, bridge the EuIII atoms, forming a brickwall-like layer parallel to
(001), which is stabilized by intralayer O—H O hydrogen bonds
Summary
R factor = 0.018; wR factor = 0.038; data-to-parameter ratio = 14.2. EuIII atom is bonded to one O atom from a monodentate 5hydroxypyridin-1-ium-3-carboxylate ligand, six O atoms from three oxalate ligands and two water molecules, exhibiting a highly distorted tricapped trigonal geometry. Each lying on an inversion center, bridge the EuIII atoms, forming a brickwall-like layer parallel to (001), which is stabilized by intralayer O—H O hydrogen bonds. The layers are further linked through interlayer O—. H O and N—H O hydrogen bonds and – interactions between the pyridine rings [centroid–centroid distance =. 3.5741 (14) Å] into a three-dimensional supramolecular network
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