Acta Cryst. (2004). E60, o1244-o1245  [ doi:10.1107/S1600536804014795 ]

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

F. Bao, X.-Q. Lü, Q. Wu and S. W. Ng

Abstract: The NH unit on the exocyclic C=C double bond in the title compound, C₃₀H₂₃N₃O, lies on the same side of the double bond as the carbonyl unit of the pyrazolonyl ring, and the two interact through an N-HO hydrogen bond [2.671 (2) Å].

Online 26 June 2004

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