4-Nitrophenyl α-l-rhamnopyranoside hemihydrate

Abstract

In the title compound, C12H15NO7·0.5H2O, there are two independent molecules in the asymmetric unit, together with one water molecule. The pyranoside rings each have close to a 1C4 chair conformation and the nitro groups are almost coplanar with the benzene rings. The water molecule links the two independent molecules through O—H...O hydrogen bonds. All the hydroxyl groups are involved in hydrogen-bond interactions, giving rise to a three-dimensional network.