Acta Cryst. (2008). E64, o1886  [ doi:10.1107/S1600536808026706 ]

5-(3-Fluorophenyl)-1-phenylpyrazolidin-3-one

Y.-Y. Liu, H. Shi, Q.-Y. Chu and H.-J. Zhu

Abstract: In the molecule of the title compound, C₁₅H₁₃FN₂O, the phenyl and fluorophenyl rings are oriented at a dihedral angle of 77.92 (3)°. The pyrazolidine ring adopts an envelope conformation. An intramolecular C-HN hydrogen bond results in the formation of a five-membered ring adopting an envelope conformation. In the crystal structure, intermolecular N-HO and C-HO hydrogen bonds link the molecules. There are C-H contacts between between aromatic H atoms and the phenyl and fluorophenyl rings. A - contact between phenyl rings [centroid-centroid distance = 3.926 (1) Å] is also observed.

Online 6 September 2008

Copyright © International Union of Crystallography
IUCr Webmaster