5-Methyl-1,3-diphenyl-N-(5-phenyl-1,3,4-thia-diazol-2-yl)-1H-pyrazole-4-carboxamide

Abstract

The asymmetric unit of the title compound C25H19N5OS, contains two mol-ecules, A and B. In mol-ecule A, the dihedral angles between the pyrazole ring and the C-bound phenyl group, the N-bound phenyl group and the thia-diazole ring are 32.30 (14), 52.25 (14) and 34.94 (12)°, respectively. The corresponding angles in mol-ecule B are 33.32 (14), 50.67 (15), and 70.30 (12)°, respectively. In the crystal, the A and B mol-ecules are linked by pairs of N-H⋯N hydrogen bonds, generating R 2 (2)(8) loops. This dimer linkage is reinforced by two C-H⋯O hydrogen bonds and one C-H⋯N hydrogen bond.

Fig. 1.

Perspective diagram of (I) with 50% probability displacement ellipsoids.

Fig. 2.

Packing diagram of the molecule viewed down the 'c' axis.