The title compound, C 22 H 19 FN 2 , was prepared by reacting phenylhydrazine with 1-(4-fluorophenyl)-3-(p-tolyl)prop-2enone. The pyrazoline ring forms a dihedral angle of 5.2 (3) with the phenyl ring, 8.8 (1) with the fluorophenyl ring and 80.7 (2) with the p-tolyl ring.
5-(p-Fluorophenyl)-1,3-diphenyl-2-pyrazoline
β Scribed by Li, Hong
- Publisher
- International Union of Crystallography
- Year
- 2007
- Tongue
- English
- Weight
- 762 KB
- Volume
- 63
- Category
- Article
- ISSN
- 1600-5368
No coin nor oath required. For personal study only.
β¦ Synopsis
The title compound, C 21 H 17 FN 2 , was prepared from phenylhydrazine and 1-phenyl-3-(p-fluorophenyl)-2-propenyl-1ketone. The pyrazolinyl ring forms dihedral angles of 11.87 (12), 8.30 (12) and 65.89 (12) with phenyl rings at the 1 and 3 positions and the fluorophenyl ring, respectively.
π SIMILAR VOLUMES
The title compound, C 21 H 17 FN 2 , crystallizes with two independent molecules in the asymmetric unit. The pyrazoline and 4-fluorophenyl rings are planar. The phenyl ring at the 5position and the pyrazoline heterocycle are almost perpendicular.
The title compound, C 17 H 13 Cl 2 FN 2 O, was prepared by the reaction of hydrazine and 1-(2,5-dichlorophenyl)-3-(4-fluorophenyl)-2-propenyl-1-ketone. In the molecule, the dihedral angle between the two benzene rings is 66.63 (9) . In the crystal structure, weak intermolecular C-HΓ Γ ΓCl hydrogen b
In the title compound, C 17 H 14 ClFN 2 O, all bond lengths and angles show normal values. The two benzene rings make a dihehral angle of 82.17 (2) . Weak intermolecular C-HΓ Γ ΓO hydrogen bonds stabilize the crystal packing.