| Summary: | In the title compound, C9H8NO+·C3H3O4−, the cation and anion are each essentially planar, with maximum deviations of 0.043 (1) and 0.060 (1) Å, respectively. The dihedral angle between these two planes is 2.20 (4)°. The conformation of the anion is stabilized by an intramolecular O—H...O hydrogen bond, which forms an S(6) ring motif. The hydroxy group of the oxine unit makes a hydrogen bond with the one of the O atoms of the carboxylate group of the 2-carboxyacetate anion. Two other carboxylate O atoms form R22(7) ring motifs via intermolecular C—H...O and N—H...O hydrogen bonds. The crystal structure is consolidated by weak intermolecular C—H...O interactions, which link the cations and anions into a three-dimensional network.
|
|---|
