Experimental

disorder in main residue; R factor = 0.043; wR factor = 0.123; data-to-parameter ratio = 13.5. In the title compound, C15H13F3O2S, the dihedral angle between the benzene rings is 79.5 (1). The ester group is twisted by 7.6 (1) from the mean plane of the adjacent benzene ring. Disorder was modeled over two sites for one F atom of the trifluoromethyl group with an occupancy ratio of 0.54 (6):0.46 (6). In the crystal, molecules are linked via weak C—H O hydrogen bonds, forming two-dimensional networks lying parallel to (101). The networks are linked via C—H interactions, leading to the formation of a three-dimensional supramolecular structure. Related literature For general background and pharmacological properties of the neuroleptic agent flupentixol [systematic name: (EZ)-2-[4-[3-[2-(trifluoromethyl)thioxanthen-9-ylidene]propyl]pipera-zin-1-yl]ethanol] and related compounds, see: Ovhed (1976)