Acta Crystallographica Section E Structure Reports Online · 2001 · 20 citations · 0 references
Natural SciencesChemistryInorganic ChemistryOrganic ChemistryStructural BiochemistryAmino Acid ChemistryAmino Acid StructureCarboxylic AcidsAmino AcidsColumnsHydrogen Bond GeometryIntramolecular Hydrogen Bonding
In the title compound, C2H6NO2+·C4H3O4−, the glycine molecule exists in the cationic form with a positively charged amino group and an uncharged carboxylic acid group. The maleic acid molecule exists in a mono-ionized state. In the semimaleate ion, an intramolecular OH⋯O hydrogen bond is found to be asymmetric. The glycinium and semimaleate ions aggregate into alternate columns extending along the c axis. A C—H⋯O hydrogen bond is also observed.