1-(2-Hydroxyethyl)-4-[3-(2-trifluoromethyl-9H-thioxanthen-9-ylidene)propyl]piperazine-1,4-diium dichloride: the dihydrochloride salt of flupentixol

In the title compound, C23H27F3N2OS+center dot 2Cl(-), the piperazine-diium ring adopts a chair conformation. The dihedral angle between the two outer aromatic rings of the 9H-thioxanthene unit is 40.35 (18)degrees. The F atoms in the trifluoromethyl group are disordered over two sets of sites with occupancies of 0.803 (6) and 0.197 (6). In the crystal, molecules are connected by N-H center dot center dot center dot Cl, O-H center dot center dot center dot Cl C-H center dot center dot center dot O and C-H center dot center dot center dot Cl hydrogen bonds, forming chains propagating along [001]. There are also C-H center dot center dot center dot pi interactions present in the crystal structure