organic compounds
Open access
The title compound, C15H13N5, crystallizes with two independent molecules in the asymmetric unit. The molecular conformations are stabilized by C—HN contacts forming S(6) ring motifs. In the crystal, pairs of molecules are connected into R22(12) dimers by N—HN hydrogen bonds. C—Hπ interactions and π–π stacking interactions [centroid–centroid distances = 3.6085 (8), 3.6657 (8), 3.4745 (8) and 3.5059 (8) Å] also also observed.
organic compounds
Open access
In the title compound, C10H9N5, the phenyl ring is twisted with respect to the pyrazole ring, forming a dihedral angle of 24.00 (6)°. In the crystal, molecules are linked by N—HN hydrogen bonds into chains running parallel to [010] containing alternating R22(6) and R22(12) rings. Further interactions are found in the crystal, viz. N—Hπ(phenyl) interactions and weak face-to-face π–π stacking interactions [centroid–centroid distance = 3.8890 (6) Å] between the centroids of the pyrazole and phenyl rings are observed.