Acta Crystallographica Section E (May 2008)
2-[(5-Amino-3-methyl-1-phenyl-1H-pyrazol-4-yl)(4-chlorophenyl)methyl]malononitrile
Abstract
In the crystal structure of the title compound, C20H16ClN5, the dihedral angle between the pyrazole ring and the phenyl ring is 54.7 (1)° and that between the pyrazole ring and the chloro-substituted phenyl ring is 72.4 (1)°. The methyl H atoms are disordered over two positions with site occupancy factors of ca 0.7 and 0.3. One amino H is disordered equally over two positions. In the crystal structure, the molecules are linked via intermolecular N—H...N hydrogen bonding.