Acta Crystallographica Section C

Crystal Structure Communications

Volume 60, Part 12 (December 2004)

organic compounds

sx1150 scheme

Acta Cryst. (2004). C60, o868-o871 [ doi:10.1107/S0108270104025223 ]

L-Methioninium chloride and L-selenomethioninium chloride at 103 K

M. Chruszcz, M. Cymborowski, A. Gawlicka-Chruszcz, S. Yasukawa, J. D. Ferrara and W. Minor

Abstract: The crystal structures of the title compounds, (S)-1-carboxy-3-(methylsulfanyl)propanaminium chloride, C₅H₁₂NO₂S⁺·Cl^-, and (S)-1-carboxy-3-(methylselanyl)propanaminium chloride, C₅H₁₂NO₂Se⁺·Cl^-, are isomorphous. The protonated L-methionine and L-selenomethionine molecules have almost identical conformations and create very similar contacts with the Cl^- anions in the crystal structures of both compounds. The amino acid cations and the Cl^- anions are linked viaN-HCl^- and O-HCl^- hydrogen bonds.

Formula: C₅H₁₂NO₂S⁺·Cl^- and C₅H₁₂NO₂Se⁺·Cl^-


	Structure factor file (CIF format) (551.2 kbytes) Contains datablock I

	Structure factor file (CIF format) (1067.2 kbytes) Contains datablocks II_revised, II_original

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