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Figure 2 Part of the crystal structure of (I). For the sake of clarity, H atoms not involved in the hydrogen bonding motifs shown have been omitted; hydrogen bonds are drawn as dashed lines. [Symmetry codes: (i) 2 − x, 2 − y, 2 − z; (ii) x, 1 − y, z; (iii) x, 1 + y, z]. |