Abstract
The title salt, C8H11N2O+·NO3 −, was synthesized by a reaction between 4-methoxybenzamidine (4-amidinoanisole) and nitric acid. The asymmetric unit comprises a non-planar 4-methoxybenzamidinium 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.
Highlights
The title salt, C8H11N2O NO3, was synthesized by a reaction between 4-methoxybenzamidine (4-amidinoanisole) and nitric acid
H atoms treated by a mixture of independent and constrained refinement max = 0.12 e Å3
The nitrate–amidinium ion pair is not planar, as the dihedral angle between the planes defined by the CN2+ and NO3 units is
Summary
H atoms treated by a mixture of independent and constrained refinement max = 0.12 e Å3. R factor = 0.038; wR factor = 0.083; data-to-parameter ratio = 13.6. The title salt, C8H11N2O NO3 , was synthesized by a reaction between 4-methoxybenzamidine (4-amidinoanisole) and nitric acid. The asymmetric unit comprises a non-planar 4-methoxybenzamidinium cation and a nitrate anion. 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. The ionic components are associated in the crystal via N—H O hydrogen bonds, resulting in a three-dimensional network
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