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Acta Cryst. (2013). E69, o1004-o1005  [ doi:10.1107/S1600536813014189 ]


S. Chantrapromma, P. Ruanwas, N. Boonnak and H.-K. Fun

Abstract: The molecule of the title heteroaryl chalcone derivative, C13H11NOS, exists in a trans-configuaration and is almost planar with a dihedral angle of 3.73 (8)° between the phenyl and thiophene rings. An intramolecular N-H...O hydrogen bond generates an S(6) ring motif. In the crystal, two adjacent molecules are linked into a dimer in an anti-parallel face-to-face manner by a pair of C-H...O interactions. Neighboring dimers are further linked into chains along the c-axis direction by N-H...N hydrogen bonds.

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