title: Tetraaqua-tetrakis-{μ(2)-[1-(carb-oxylato-meth-yl)cyclo-hex-yl]methanaminium}bis(μ(3)-hydroxido)bis(nitrato-κO,O')tetrazinc(II).
abstract: As the title gabapentin complex, [Zn(4)(OH)(2)(NO(3))(2)(C(9)H(17)NO(2))(4)(H(2)O)(4)](NO(3))(4) is located about a centre of inversion, the asymmetric unit contains two disordered nitrate ions and half a complex mol-ecule. The two zinc ions have different coordination environments: one is slightly distorted octa-hedral and the other is trigonal-pyramidal. The conformation of the gabapentin mol-ecule is defined by the formation of two intra-molecular O-H⋯O hydrogen bonds. Furthermore, the ammonium H atoms are involved in numerous hydrogen bonds with the disordered nitrate anions.
authors.affiliation: Molecular Science Institute, School of Chemistry, University of the Witwatersrand, PO WITS, 2050, Johannesburg, South Africa.
authors.forename: Elise J C
authors.initials: EJ
authors.lastname: de Vries
authors.forename: Caryn
authors.initials: C
authors.lastname: Gamble
authors.forename: Ahmed
authors.initials: A
authors.lastname: Shaikjee