Acta Cryst. (2013). E69, o1179 [ doi:10.1107/S1600536813016462 ]
Abstract: In the title compound, C18H20F2N2O2S, the central piperazine ring adopts a chair conformation. The dihedral angle between the two benzene rings is 40.20°, whereas those between the piperazine ring (considering the best fit plane through all the non-H atoms) and the sulfonyl-bound benzene and difluorobenzene rings are 74.96 and 86.16°, respectively. In the crystal, molecules are stacked along the a axis through weak C-HO and C-HF interactions.
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