Acta Cryst. (2001). E57, o666-o668  [ doi:10.1107/S1600536801010558 ]

DL-Alaninium oxalate

M. Subha Nandhini, R. V. Krishnakumar and S. Natarajan

Abstract: In the title compound, C₃H₈NO₂⁺·C₂HO₄^-, the alanine molecule exists in the protonated cationic form and the oxalic acid molecule in the mono-ionized state. The alanine molecules dimerize across inversion centres through head-to-tail N-HO hydrogen bonds. The semi-oxalate ions aggregate into hydrogen-bonded strings along the shortest cell axis. The crystal structure is also characterized by the presence of a C-HO hydrogen bond and a short CO contact between amino acids.

Online 6 July 2001

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