Acta Cryst. (2009). E65, o675  [ doi:10.1107/S1600536809007144 ]

1-(4-Fluorophenyl)-5-(4-methoxyphenyl)pyrazolidin-3-one

B.-J. Dai, Y.-Y. Liu, Q.-B. Xu, J. Hu and H.-J. Zhu

Abstract: In the molecule of the title compound, C₁₆H₁₅FN₂O₂, the benzene rings are oriented at a dihedral angle of 88.61 (3)°. The five-membered ring adopts an envelope conformation. Intramolecular C-HN hydrogen bonds result in the formation of two planar five-membered rings. In the crystal structure, intermolecular N-HO and C-HF hydrogen bonds link the molecules, forming R₂²(8) and R₂²(18) ring motifs. Weak C-H interactions may further stabilize the structure.

Online 6 March 2009

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