Acta Cryst. (2013). E69, o1769 [ doi:10.1107/S1600536813029528 ]
Abstract: In the title compound, C24H20N4O2, the pyrazole ring makes dihedral angles of 47.57 (10)° and 30.56 (11)° with its N-bound and C-bound phenyl groups, respectively. The C-N-N-C group that links the two carbonyls has a torsion angle of 81.5 (2)°. The torsion angles between the carbonyl groups and their adjacent pyrazole and phenyl rings are 125.89 (19) and 164.22 (17)°, respectively. In the crystal, pairs of molecules are linked by N-HO hydrogen bonds into R22(10) ring motifs, which in turn link to form chains that propagate parallel to the c-axis direction.
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