Crystal structure of 2-hydroxy-N-(2-hydroxyethyl)-N-{2-hydroxy-3-[(E)-N-hydroxyethanimidoyl]-5-methylbenzyl}-ethanaminium acetate monohydrate

The structure of the title hydrated molecular salt, C₁₄H₂₃N₂O₄⁺·C₂H₃O₂^-·H₂O, was determined as part of a wider study on the use of the molecule as a polydentate ligand in the synthesis of Mn^III clusters with magnetic properties. The cation features intramolecular O - H⋯N and N - H⋯O hydrogen-bond interactions. The crystal structure features a range of intermolecular hydrogen-bonding interactions, principally O - H⋯O interactions between all three species in the asymmetric unit. An R₄²(8) graph-set hydrogen-bonding motif between the anion and water molecules serves as a unit which links to the cation via the diethanolamine group. Each O atom of the acetate anion accepts two hydrogen bonds.