title: l-Leucinium fluoride monohydrate.
abstract: The asymmetric unit of the title hydrated salt, C(6)H(14)NO(2) (+)·F(-)·H(2)O, contains a discrete cation with a protonated amino group, a halide anion and one water mol-ecule. The crystal structure is composed of double layers parallel to (010) held together by N-H⋯O, N-H⋯F, O-H⋯F and C-H⋯F hydrogen bonds, forming a two-dimensional network, and stacked along the c axis, viz. hydro-philic layers at z = 0 and 1/2 and hydro-phobic layers at z = 1/3 and 2/3.
authors.affiliation: Unité de Recherche Chimie de l'Environnement et Molculaire Structurale (CHEMS), Faculté des Sciences Exactes, Campus Chaabet Ersas, Université Mentouri de Constantine, 25000 Constantine,  Algeria.
authors.forename: Ouahida
authors.initials: O
authors.lastname: Zeghouan
authors.forename: Lamia
authors.initials: L
authors.lastname: Bendjeddou
authors.forename: Aouatef
authors.initials: A
authors.lastname: Cherouana
authors.forename: Slimane
authors.initials: S
authors.lastname: Dahaoui
authors.forename: Claude
authors.initials: C
authors.lastname: Lecomte