title: 4-Meth-oxy-benzamidinium nitrate.
abstract: The title salt, C8H11N2O(+)·NO3(-), was synthesized by a reaction between 4-meth-oxy-benzamidine (4-amidino-anisole) and nitric acid. The asymmetric unit comprises a non-planar 4-meth-oxy-benzamidinium cation and a nitrate anion. In the cation, the amidinium group has two similar C-N bond lengths [1.302 (3) and 1.313 (3) Å] and its plane forms a dihedral angle of 32.66 (5)° with the mean plane of the benzene ring. The nitrate-amidinium ion pair is not planar, as the dihedral angle between the planes defined by the CN2(+) and NO3(-) units is 19.28 (6)°. The ionic components are associated in the crystal via N-H⋯O hydrogen bonds, resulting in a three-dimensional network.
authors.affiliation: Chemistry Department, 'Sapienza' University of Rome, P.le A. Moro, 5, I-00185 Rome, Italy.
authors.forename: Simona
authors.initials: S
authors.lastname: Irrera
authors.forename: Gustavo
authors.initials: G
authors.lastname: Portalone