Acta Cryst. (2004). E60, o269-o271  [ doi:10.1107/S160053680400145X ]

(S)-Alanine-(S)-mandelic acid (1/1)

Z.-Q. Hu, D.-J. Xu and Y.-Z. Xu

Abstract: Crystals of the title molecular complex, C₈H₈O₃·C₃H₇NO₂, were obtained from the remaining filtrate after separating the crystals of a molecular complex of (S)-alanine-(R)-mandelic acid in an optical resolution experiment using (S)-alanine. Each (S)-alanine is hydrogen bonded to three (S)-mandelic acid molecules (and vice versa). The carboxylate of (S)-alanine is nearly coplanar with the carboxyl group of (S)-mandelic acid, a situation that is very different from that found in the reported (S)-alanine-(R)-mandelic acid.

Online 30 January 2004

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