Research Article: Cyclo­octanaminium hydrogen succinate monohydrate

Date Published: April 01, 2012

Publisher: International Union of Crystallography

Author(s): Sanaz Khorasani, Manuel A. Fernandes.


In the title hydrated salt, C8H18N+·C4H5O4−·H2O, the cyclo­octyl­ ring of the cation is disordered over two positions in a 0.833 (3):0.167 (3) ratio. The structure contains various O—H.·O and N—H⋯O inter­actions, forming a hydrogen-bonded layer of mol­ecules perpendicular to the c axis. In each layer, the ammonium cation hydrogen bonds to two hydrogen succinate anions and one water mol­ecule. Each hydrogen succinate anion hydrogen bonds to neighbouring anions, forming a chain of mol­ecules along the b axis. In addition, each hydrogen succinate anion hydrogen bonds to two water mol­ecules and the ammonium cation.

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For studies involving hydrogen-bonding inter­actions, see: Latimer & Rodebush (1920 ▶); Pimentel & McClellan (1960 ▶); Lemmerer (2011a ▶,b ▶). For graph-set motifs, see: Bernstein et al. (1995 ▶); Etter et al. (1990 ▶).