Experimental Crystal data

R factor = 0.035; wR factor = 0.073; data-to-parameter ratio = 11.7. The title compound, C6H12O6, a C-3 position epimer of d-galactose, crystallized from an aqueous solution, was confirmed as -d-pyranose with a 4C1 (C1) conformation. In the crystal, O—H O hydrogen bonds between the hydroxy groups at the C-1 and C-6 positions connect molecules into a tape structure with an R3 3(11) ring motif running along the a-axis direction. The tapes are connected by further O—H O hydrogen bonds, forming a three-dimensional network. Related literatur