title: 4-Aza-niumyl-2,2,6,6-tetra-methyl-piperidin-1-ium dinitrate.
abstract: In the crystal structure of the title salt, C9H22N2 (2+)·2NO3 (-), the piperidine ring of the dication adopts a chair conformation and the orientation of the C-NH3 bond is equatorial. The ions are linked by normal and bifurcated N-H⋯O hydrogen bonds in R 2 (2)(6), two R 4 (2)(8) and R 3 (4)(14) graf-set motifs, generating a three-dimensional network.
authors.affiliation: Institut Préparatoire aux Etudes d'Ingénieurs de Monastir, Avenue Ibn-El-Jazzar, 5019 Monastir, Tunisia ; Laboratoire de Matériaux et Cristallochimie, Faculté des Sciences de Tunis, 2092 El Manar II, Tunis, Tunisia.
authors.forename: Hammouda
authors.initials: H
authors.lastname: Chebbi
authors.affiliation: Institut Préparatoire aux Etudes d'Ingénieurs de Nabeul, Campus Universitaire Mrazka, 8000 Nabeul, Tunisia ; Laboratoire de Matériaux et Cristallochimie, Faculté des Sciences de Tunis, 2092 El Manar II, Tunis, Tunisia.
authors.forename: Ridha
authors.initials: R
authors.lastname: Ben Smail
authors.affiliation: Laboratoire de Matériaux et Cristallochimie, Faculté des Sciences de Tunis, 2092 El Manar II, Tunis, Tunisia.
authors.forename: Mohamed Faouzi
authors.initials: MF
authors.lastname: Zid