1-(4-Chlorophenyl)-3-phenyl-1H-pyrazol-5(4H)-one

Abstract

In the crystal of the title compound, C15H11ClN2O, the molecules are linked by C—H...O and weak C—H...π interactions. The chlorophenyl and phenyl rings are twisted with respect to the central pyrazolone ring, making dihedral angles of 18.23 (8) and 8.35 (8)°, respectively. The N—N and C=O bond lengths are comparable to those reported for pyrazolone compounds.