Abstract
In the 2-aminobenzoate anion of the title salt, C6H9N2 +·C7H6NO2 −, an intramolecular N—H⋯O hydrogen bond is observed. The dihedral angle between the ring and the CO2 group is 8.41 (13)°. In the crystal, the protonated N atom and the 2-amino group of the cation are hydrogen bonded to the carboxylate O atoms via a pair of N—H⋯O hydrogen bonds, forming an R 2 2(8) ring motif. The ion pairs are further connected via N—H⋯O hydrogen bonds, resulting in a donor–donor–acceptor–acceptor (DDAA) array of quadruple hydrogen bonds. The crystal structure also features a weak N—H⋯O hydrogen bond and a C—H⋯π interaction, resulting in a three-dimensional network.
Highlights
In the 2-aminobenzoate anion of the title salt, C6H9N2+C7H6NO2, an intramolecular N—H O hydrogen bond is observed
The protonated N atom and the 2-amino group of the cation are hydrogen bonded to the carboxylate O atoms via a pair of N—H O hydrogen bonds, forming an R22(8) ring motif
For stability of the temperature controller used for the data collection, see: Cosier & Glazer (1986)
Summary
R factor = 0.037; wR factor = 0.101; data-to-parameter ratio = 14.7. In the 2-aminobenzoate anion of the title salt, C6H9N2+C7H6NO2, an intramolecular N—H O hydrogen bond is observed. The dihedral angle between the ring and the CO2 group is 8.41 (13). The protonated N atom and the 2-amino group of the cation are hydrogen bonded to the carboxylate O atoms via a pair of N—H O hydrogen bonds, forming an R22(8) ring motif. The ion pairs are further connected via N—H O hydrogen bonds, resulting in a donor–donor–acceptor–acceptor (DDAA) array of quadruple hydrogen bonds. N—H O hydrogen bond and a C—H interaction, resulting in a three-dimensional network
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