title: Crystal structure of 2,5-di-methyl-anilinium hydrogen maleate.
abstract: The crystal structure of the title salt, C8H12N(+)·C4H3O4 (-), consists of a 2,5-di-methyl-anilinium cation and an hydrogen maleate anion. In the anion, a strong intra-molecular O-H⋯O hydrogen bond is observed, leading to an S(7) graph-set motif. In the crystal, the cations and anions pack in alternating layers parallel to (001). The ammonium group undergoes inter-molecular N-H⋯O hydrogen-bonding inter-actions with the O atoms of three different hydrogen maleate anions. This results in the formation of ribbons extending parallel to [010] with hydrogen-bonding motifs of the types R (4) 4(12) and R (4) 4(18).
authors.affiliation: Laboratoire de Chimie des Matériaux, Faculté des Sciences de Bizerte, 7021 Zarzouna Bizerte, Tunisia.
authors.forename: Maha
authors.initials: M
authors.lastname: Mathlouthi
authors.affiliation: Department of Chemistry and Biochemistry, St Catherine University, 2004 Randolph Avenue, #4282, St Paul, MN 55105, USA.
authors.forename: Daron E
authors.initials: DE
authors.lastname: Janzen
authors.affiliation: Laboratoire de Chimie des Matériaux, Faculté des Sciences de Bizerte, 7021 Zarzouna Bizerte, Tunisia.
authors.forename: Mohamed
authors.initials: M
authors.lastname: Rzaigui
authors.affiliation: Laboratoire de Chimie des Matériaux, Faculté des Sciences de Bizerte, 7021 Zarzouna Bizerte, Tunisia.
authors.forename: Wajda
authors.initials: W
authors.lastname: Smirani Sta
keywords: 2,5-di­methyl­anilinium cation; crystal structure; hydrogen bonding; maleate anion