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Acta Cryst. (2005). E61, o2499-o2501  [ doi:10.1107/S1600536805021367 ]

[alpha]-Lactose monohydrate: a redetermination at 150 K

J. H. Smith, S. E. Dann, M. R. J. Elsegood, S. H. Dale and C. G. Blatchford

Abstract: The structure of the monohydrate of [alpha]-4-([beta]-D-galactopyranosido)-D-glucopyranose, more commonly known as [alpha]-lactose monohydrate, C12H22O11·H2O, has been previously studied by single-crystal diffraction at ca 296 K [Beevers & Hansen (1971). Acta Cryst. B27, 1323-1325; Fries et al. (1971). Acta Cryst. B27, 994-1005; Noordik et al. (1984). Z. Kristallogr. 168, 59-65]. This redetermination at low temperature [150 (2) K] shows improved precision of geometry. Graph-set analysis of the hydrogen-bonding motifs is presented for the first time.

Online 13 July 2005


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