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(3Z)-1,1,1-Trifluoro-4-phenyl-4-[(2-{[(1Z)-4,4,4-trifluoro-3-oxo-1-phenylbut-1-en-1-yl]amino}ethyl)amino]but-3-en-2-one

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

Journal: Acta Crystallographica Section E
ISSN 1600-5368

Volume: 68;
Issue: 7;
Start page: o2289;
Date: 2012;
Original page

ABSTRACT
In the title compound, C22H18F6N2O2, the five atoms comprising each O=C—C=C—N fragment are almost coplanar (the r.m.s. deviation for the fitted atoms being 0.008 and 0.002 Å) and form a dihedral angle of 47.70 (12)°. The phenyl ring attached to each of the O=C—C=C—N fragments is twisted out of the respective plane with dihedral angles of 64.46 (11) and 61.82 (10)°, respectively. An almost orthogonal relationship for the phenyl rings is indicated by the dihedral angle between them of 78.19 (14)°. The conformation about each ethylene bond is Z, which allows for the formation of intramolecular N—H...O hydrogen bonds which close S(6) loops. The most prominent feature of the crystal packing are N—H...O hydrogen bonds that result in supramolecular chains along the a axis. The F atoms of one –CF3 groups are disordered over three sets of sites with site-occupation factors of 0.318 (4), 0.360 (10) and 0.322 (9).

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