Acta Cryst. (2013). C69, 671-673 [ doi:10.1107/S0108270113013267 ]
Abstract: The title compound, C16H9FN2S, crystallizes as a nonmerohedral twin with twin rotation about the reciprocal-lattice vector *. The molecules are nearly planar and the dihedral angle between the planes of the two aryl rings is only 4.4 (2)°. The molecules are linked by pairs of C-HN hydrogen bonds to form cyclic centrosymmetric R22(18) dimers, which are linked into chains by an aromatic - stacking interaction. Comparisons are made with some related 3-aryl-2-thienylacrylonitriles.
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