Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 11 (November 2013)

organic compounds

Acta Cryst. (2013). E69, o1694-o1695    [ doi:10.1107/S1600536813028079 ]

Second monoclinic form of (E)-3-(4-fluoro­phen­yl)-1-phenyl­prop-2-en-1-one

S. N. Arias-Ruiz, N. Romero, C. E. Lobato-García, A. Gómez-Rivera and A. Mendoza

Abstract: The unit-cell dimensions and space group of the second monoclinic polymorph of the title compound, C15H11FO, differ from those of the previously reported form [Jing (2009). Acta Cryst. E65, o2515]. The title compound shows an E conformation of the C=C bond with the 4-fluoro­phenyl group opposite to the benzoyl group. The torsion angle of between the planes of the 4-fluoro­phenyl and benzoyl groups is 10.53 (6)°. In the crystal, weak C-H...O and C-H...F inter­actions form a cross-linked packing motif, building sheets parallel to (-102).

CCDC reference: 966200

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