Acta Cryst. (2013). C69, 1047-1050 [ doi:10.1107/S0108270113019021 ]
Abstract: Methyl -D-xylopyranosyl-(14)--D-mannopyranoside, C12H22O10, crystallized as colorless block-like needles from methanol-water solvent. Comparisons to the internal linkage conformations in the two crystallographic forms of the structurally related disaccharide methyl -D-mannopyranosyl-(14)--D-xylopyranoside are discussed. Intramolecular inter-residue hydrogen bonding is observed between one mannopyranosyl hydroxy O atom and the ring O atom of the xylopyranosyl residue. Intermolecular hydrogen bonding yields a bilayered two-dimensional sheet of molecules that are located parallel to the bc plane.
Keywords: crystal structure; disaccharides; antifreeze glycolipid.
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