(E)-2-(1,3-benzothiazol-2-yl)-3-(4-fluorophenyl)acrylonitrile: a chain of π-stacked hydrogen-bonded rings.

The title compound, C16H9FN2S, crystallizes as a nonmerohedral twin with twin rotation about the reciprocal-lattice vector [101]*. The molecules are nearly planar and the dihedral angle between the planes of the two aryl rings is only 4.4 (2)°.