organic compounds
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In the title compound, C17H13ClN2O2, the phenyl and chlorobenzene rings are inclined to the central pyrazole ring at 40.84 (9) and 65.30 (9)°, respectively. In the crystal, pairs of C—Hπ interactions link the molecules into inversion dimers and C—HO hydrogen bonds link these dimers into columns extended in [010]. The crystal packing exhibits short intermolecular OCl contacts of 3.0913 (16) Å.