Acta Cryst. (2011). E67, o1783-o1784 [ doi:10.1107/S1600536811023713 ]
Abstract: In the title compound, C16H11ClN2O, the chloro-substituted phenyl ring is disordered over two positions with refined site occupancies of 0.503 (2) and 0.497 (2). The dihedral angle between the pyrazole and phenyl rings is 7.93 (7)°. The pyrazole ring also forms dihedral angles of 24.43 (9)° and 28.67 (9)° with the disordered chloro-substituted benzene ring. In the crystal, molecules are linked by intermolecular C-HO hydrogen bonds, generating R21(7) and R22(10) ring motifs. - interactions between the pyrazole and phenyl rings [centroid-centroid distance = 3.758 (1) Å] further stabilize the crystal structure.
Online 25 June 2011
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