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Acta Cryst. (2013). E69, o464-o465
[ doi:10.1107/S1600536813005369 ]

3-(4-Chlorophenyl)-5-(4-ethoxyphenyl)-4,5-dihydro-1H-pyrazole-1-carbothioamide ethanol monosolvate

C. K. Quah, H.-K. Fun, T. Suwunwong, N. Boonnak and S. Chantrapromma

Abstract: The asymmetric unit of the title compound, C18H18ClN3OS·C2H5OH, comprises a pyrazoline derivative and an ethanol solvent molecule. In the molecule of the pyrazoline derivative, the pyrazole ring adopts an envelope conformation with the C atom bearing the ethoxyphenyl substituent as the flap. The dihedral angle between the benzene rings is 74.22 (7)°. The ethoxy group is coplanar with the attached benzene ring [C-O-C-Cmethyl = 175.50 (11)° and r.m.s. deviation = 0.0459 (1) Å for the nine non-H atoms]. In the crystal, the pyrazoline molecules are linked by N-H...Oethoxy hydrogen bonds into chains along the c axis and are further linked with the solvent ethanol molecules by N-H...Oethanol and Oethanol-H...S hydrogen bonds. C-H...[pi] interactions are also present.


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