The crystal structures of benzyl­ammonium phenyl­acetate and its hydrate

摘要

The title compounds benzyl­ammonium phenyl­acetate, C7H10N⁺·C8H7O2 ⁻ (>1), and its monohydrate, C7H10N⁺·C8H7O2 ⁻·H2O (>2), can be obtained by evaporating methano­lic solutions containing equimolar amounts of benzyl­amine and phenyl­acetic acid in the absence and presence of water, respectively. N—H⋯O hydrogen bonds in the crystal structure of >1 lead to the formation of hydro­philic channels running along the b-axis direction. The hydrogen-bonding system is best described by fused R ³ 4(10) ring patterns, often observed in ammonium carboxyl­ate salts. In >2, the presence of the crystal water leads to the formation of a two-dimensional hydrogen-bonding network. The benzyl moieties in >1 and >2 form hydro­phobic layers in the crystal structures with the aromatic rings adopting edge-to-face arrangements.