Orphenadrinium picrate

Abstract

In the title molecular salt {systematic name: N,N-dimethyl-2-[(2- methylphenyl)(phenyl)methoxy]ethanaminium 2,4,6-trinitrophenolate}, C 18H24NO+·C6H 2N3O7-, the phenyl rings of the orphenadrinum cation are disordered [occupancies =0.662 (4) and 0.338 (4)]. The N atom in the orphenadrinum cation is protonated. The picrate anion interacts with the protonated N atom through a bifurcated N - H⋯O hydrogen bond, forming an R12(6) ring motif with an adjacent cation. The mean planes of the two o-NO2 and single p-NO2 groups in the picrate anion are twisted by 23.0 (6), 31.3 (3) and 6.3 (2)° with respect to the mean planes of the six-membered ring. Weak intermolecular C - H⋯O hydrogen bonds, C - H⋯π intermolecular interactions and weak π- π stacking interactions [centroid-centroid distances = 3.677 (2) and 3.515 (3) Å } stabilize the crystal packing, creating a three-dimensional network.