Olanzapinium dipicrate

The asymmetric unit of the title salt [systematic name: 2-methyl-4-(4-methyl­piperazin-4-ium-1-yl)-10H-thieno[2,3-b][1,5]benzodiazepinium bis­(2,4,6-trinitro­phenolate)], C₁₇H₂₂N₄S²⁺·2C₆H₂N₃O₇⁻, consists of a diprotonated olanzapinium cation and two independent picrate anions. In the cation, the piperazine ring adopts a distorted chair conformation and contains a positively charged N atom with quaternary character and the N atom in the seven-membered 1,5-diazepine ring, which adopts a boat configuration, is also protonated. The dihedral angle between the benzene and thiene rings flanking the diazepine ring is 58.8 (1)°. In one of the picrate anions, a nitro group is disordered over two sets of sites in a 0.748 (5):0.252 (5) ratio, and the benzene ring has a flat envelope conformation with the O⁻ C atom displaced from the mean plane of the other five C atoms [maximum deviation 0.0151 (14) Å] by 0.1449 (14) Å. In the crystal, N—H...O hydrogen bonds and weak inter­molecular C—H...S and C—H...O inter­actions link the components, forming a three-dimensional network.