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(2Z)-3-(4-Fluoroanilino)-1-(5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)but-2-en-1-one

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Author(s): Abdullah M. Asiri | Hassan M. Faidallah | Seik Weng Ng | Edward R. T. Tiekink

Journal: Acta Crystallographica Section E
ISSN 1600-5368

Volume: 68;
Issue: 3;
Start page: o764;
Date: 2012;
Original page

ABSTRACT
The central carbonyl group in the title compound, C20H18FN3O2, forms amine–hydroxy N—H...O and hydroxy–hydroxy O—H...O hydrogen bonds, leading to two S(6) rings. The N-bound phenyl ring is coplanar with the five-membered ring to which it is attached [dihedral angle = 6.27 (10)°], but an overall twist in the molecule is evident, the dihedral angle between the terminal phenyl and benzene rings being 27.30 (10)°. Molecules aggregate into a three-dimensional architecture via C—H...F, C—H...O and C—H...π interactions.

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