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Figure 2 The arrangement of the molecules in the crystal structure. The C–H⋯π interactions are represented by dashed lines, the π–π contacts by dotted lines. H atoms not involved in the interactions have been omitted. [Symmetry codes: (i) –x, y – 1/2, –z + ; (ii) x, –y + , z + ; (iii) x, y + 1, z; (iv) x, y – 1, z.] |