Acta Cryst. (2003). E59, o1084-o1086  [ doi:10.1107/S1600536803013916 ]

L-Phenylalaninium trichloroacetate hemihydrate

K. Rajagopal, R. V. Krishnakumar, M. Subha Nandhini, T. S. Cameron and S. Natarajan

Abstract: In the title compound, C₉H₁₂NO₂⁺·C₂Cl₃O₂^-·H₂O, the phenylalanine molecule exists as a cation with a positively charged amino group and a neutral carboxylic acid group. The trichloroacetic acid molecule is deprotonated as an anion and forms N-HO hydrogen bonds with the phenylalaninium cations. Water molecules also mediate interactions with amino acid and trichloroacetate ions through O-HO hydrogen bonds. The aggregation pattern observed in the title salt has striking similarities with those observed in L-phenylalanine L-phenylalaninium formate and L-phenylalanine L-phenylalaninium perchlorate.

Online 30 June 2003

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