Ethyl 1,5-diphenyl-1H-pyrazole-4-carboxylate

Abstract

The asymmetric unit of the title compound, C<inf>18</inf>H <inf>16</inf>N<inf>2</inf>O<inf>2</inf>, contains two independent molecules (A and B). In molecule A, the pyrazole ring is inclined at angles of 48.86 (6) and 60.80 (6)° with respect to the two phenyl rings; the corresponding angles for molecule B are 46.86 (6) and 58.63 (6)°. In the crystal, molecules of type A are linked into sheets parallel to (001) via weak C-H?O hydrogen bonds, whereas the molecules of type B are linked into chains along [010] via weak C-H?O hydrogen bonds.