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Acta Cryst. (2001). E57, o922-o924 [ doi:10.1107/S1600536801014672 ]
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-Alaninium maleateAbstract: In the title compound, C3H8NO2+·C4H3O4-, the -alanine molecule exists in the cationic form with a positively charged amino group and an uncharged carboxylic acid group. The maleic acid molecule exists in the mono-ionized state. In the semi-maleate ion, the intramolecular hydrogen bond between atoms O3 and O5 is found to be asymmetric. There are no direct hydrogen-bonded interactions between the semimaleate anions. The nature of interactions between individual molecules is different from those observed in L-alaninium maleate.
Online 20 September 2001
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