Acta Cryst. (2008). E64, o2301-o2302  [ doi:10.1107/S1600536808036088 ]

4-[(4-Chlorophenyl)(5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)methyl]-5-methyl-2-phenyl-1H-pyrazol-3(2H)-one

H.-K. Fun, S. R. Jebas, K. S. Girish and B. Kalluraya

Abstract: In the the title compound, C₂₇H₂₃ClN₄O₂, the chlorophenyl ring forms dihedral angles of 77.70 (9) and 86.65 (9)°, respectively, with the pyrazol-3-one and pyrazole rings. The phenyl rings attached to the pyrazole rings are twisted away from them [dihedral angles 33.80 (9) and 40.34 (10)°]. An intramolecular O-HO hydrogen bond generates an S(8) ring motif. The molecules are linked into chains running along the c axis by N-HN hydrogen bonds, and the chains are cross-linked via C-HO hydrogen bonds and C-H interactions involving the chlorophenyl ring.

Online 8 November 2008

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