Crystal structure of 1-(2,4-dinitrophenyl)-3,5-diphenyl-1H-pyrazole

Abstract

In the title molecule, C21H14N4O4, the phenyl rings make dihedral angles of 39.61(8) and 9.4(1)°, respectively, with the central pyrazole ring. The dihedral angle between the pyrazole and dinitrophenyl rings is 46.95(5)°. In the crystal, molecules pack in helical stacks parallel to the a axis aided by weak C - H⋯O interactions.