L-Alanine hydrochloride monohydrate

Abstract

Colorless crystals of l-alanine hydrochloride monohydrate, C3H8NO2 +·Cl-·H2O, were obtained from a powder sample that had been left standing in a refrigerator for a few years. The structure displays several inter-molecular hydrogen bonds: the hydroxyl O atom is involved in a single hydrogen bond to the chloride anion, while the ammonium group forms one hydrogen bond to the chloride anion and two hydrogen bonds to water mol-ecules. An intermolecular bond between the carbonyl O atom and the ammonium group [2.8459 (15) Å] is also found.