Acta Crystallographica Section E

Structure Reports Online

Volume 68, Part 9 (September 2012)


organic compounds



is5177 scheme

Acta Cryst. (2012). E68, o2634    [ doi:10.1107/S1600536812033971 ]

1-[3-(4-Fluorophenyl)-5-phenyl-4,5-dihydro-1H-pyrazol-1-yl]ethanone

H.-K. Fun, C. W. Ooi, M. Sapnakumari, B. Narayana and B. K. Sarojini

Abstract: In the title compound, C17H15FN2O, the pyrazoline ring adopts a flattened envelope conformation. The dihedral angle between the fluoro-substituted benzene ring and the phenyl ring is 69.20 (5)°. In the crystal, a pair of C-H...O hydrogen bonds link neighbouring molecules, forming an inversion dimer. The crystal structure is further consolidated by C-H...[pi] interactions and by a [pi]-[pi] interaction with a centroid-centroid distance of 3.7379 (6) Å.


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