Acta Cryst. (2002). E58, o1365-o1366  [ doi:10.1107/S1600536802020299 ]

4-[(2-Hydroxyphenylamino)phenylmethylene]-5-methyl-2-phenyl-2H-pyrazol-3(4H)-one

J.-L. Wang, S.-M. Zhang and F.-M. Miao

Abstract: The title compound, C₂₃H₁₉N₃O₂, a condensation product of 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone and o-aminophenol, is a neutral tridentate ligand in enamine-keto form, due to a strong intramolecular N-HO hydrogen bond. A pair of intermolecular O-HO hydrogen bonds link molecules to give dimers.

Online 15 November 2002

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