Abstract
The title salt, C(8)H(20)N(2)(2+)·2NO(3)(-), was obtained by a reaction between 1,3-cyclohexa-nebis(methyl-amine) and nitric acid. The cyclo-hexane ring of the organic cation is in a chair conformation with the methyl-ammonium substituents in the equatorial positions and the two terminal ammonium groups in a trans conformation. In the crystal, mixed cation-anion layers lying parallel to the (010) plane are formed through N-H⋯O hydrogen-bonding inter-actions; these layers are formed by infinite undulating chains running parallel to the [001] direction. The overall inter-molecular inter-actions involved in the structure were qu-anti-fied and fully described by Hirshfeld surface analysis. In addition, energy-framework calculations were used to analyse and visualize the three-dimensional topology of the crystal packing. The electrostatic energy framework is dominant over the dispersion energy framework.