Abstract
In the title compound, C3H8NO2+·C4H5O6−, the l-alanine molecule exists in the cationic form, with a positively charged amino group and an uncharged carboxylic acid group. The tartaric acid molecule exists in the mono-ionized state. The structure is stabilized by a three-dimensional network of O—H⋯O and N—H⋯O hydrogen bonds. No head-to-tail hydrogen bond is observed among the amino acid molecules. The aggregation pattern observed in the structure has striking similarities to those observed in other related amino acid–tartaric acid complexes.
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