(IUCr) Crystallography Journals Online

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Acta Cryst. (2003). E59, o28-o30 [ doi:10.1107/S1600536802022225 ]

DL-Valinium perchlorate

B. Sridhar, N. Srinivasan, B. Dalhus and R. K. Rajaram

Abstract: The title compound, C₅H₁₂NO₂⁺·ClO₄^-, crystallizes in the triclinic space group P $\overline 1$ with four valinium cations and four perchlorate anions in the asymmetric unit. In the crystal, three of the four crystallographically independent valinium residues are linked to the perchlorate anions via O-HO hydrogen bonds. The fourth residue, on the other hand, forms O-HO hydrogen bonds with an inversion-related residue, thereby forming a dimer. Both class I and class III hydrogen-bonding patterns are observed. All the four residues have similar gauche II-gauche I side-chain conformations.

Online 19 December 2002