Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 4 (April 2013)

organic compounds

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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