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The title compound, C 15 H 13 ClN 4 , crystallizes with two independent mol-ecules ( A and B ) in the asymmetric unit, which are far from planar as a result of steric repulsion between the rings. The benzene and phenyl rings are inclined to the central pyrazole ring by 46.64 (10) and 17.87 (10)° in mol-ecule A , and by 40.02 (10) and 14.18 (10)° in mol-ecule B . The aromatic rings are inclined to one another by 58.77 (9)° in mol-ecule A , and 36.95 (8)° in mol-ecule B . In the crystal, the A and B mol-ecules are linked by two pairs of N-H⋯N hydrogen bonds forming A - B dimers. These are further linked by a fifth N-H⋯N hydrogen bond, forming tetra-mer-like units that stack along the a -axis direction, forming columns, which are in turn linked by C-H⋯π inter-actions, forming layers parallel to the ac plane.

Crystal structure of 5-chloro-N1-(5-phenyl-1H-pyrazol-3-yl)benzene-1,2-diamine

Crystal structure of 5-chloro-N¹-(5-phenyl-1H-pyrazol-3-yl)benzene-1,2-diamine