Acta Cryst. (2013). E69, o1701 [ doi:10.1107/S1600536813028833 ]
Abstract: In the title compound, C12H9ClN2S, the imidazo[2,1-b]thiazole fragment is planar (r.m.s. deviation = 0.003 Å), and the benzene ring is twisted slightly [by 5.65 (6)°] relative to this moiety. In the crystal, molecules are linked by - stacking interactions into columns along . The molecules within the columns are arranged alternatively by their planar rotation of 180°. Thus, in the columns, there are the two types of - stacking interactions, namely, (i) between two imidazo[2,1-b]thiazole fragments [interplanar distance = 3.351 (2) Å] and (ii) between an imidazo[2,1-b]thiazole fragment and the phenyl ring [interplanar distance = 3.410 (5) Å]. There are no short contacts between the columns.
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