Acta Cryst. (2002). E58, o882-o884  [ doi:10.1107/S1600536802012461 ]

L-Methioninium nitrate

S. Pandiarajan, B. Sridhar and R. K. Rajaram

Abstract: The asymmetric unit of the title compound, C₅H₁₂NO₂S⁺·NO₃^-, is composed of two crystallographically independent methioninium cations related by pseudosymmetry (-x,  + y, ½ - z) and two nitrate anions related by a pseudo-inversion centre at (0.50, 0.43, 0.25). In one of the residues, the straight side-chain conformation is gauche II-trans-gauche II, while in the other it is gauche II-trans-trans. In the crystal, the methioninium residues form N-HO hydrogen-bonded molecular columns, which are interlinked by N-HO and O-HO hydrogen bonds involving the O atoms of the nitrate groups.

Online 19 July 2002

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