Ethyl [1-(4-bromophenyl)-1-hydroxy-3-oxobutyl](phenyl)phosphinate monohydrateData reported in this paper were previously deposited with the CCDC (No. 628997).

Abstract

In the title hydrate, C18H20BrO4P·H2O, a staggered conformation is found when the organic molecule is viewed down the central P—C bond, with the oxo and hydroxyl groups being diagonally opposite; each of the central P and C atoms has an S-configuration. The crystal structure features supramolecular double chains along the b axis mediated by Ohydroxyl–H...Ooxo, Owater–H...Ooxo, and Owater–H...Owater hydrogen bonds.