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Figure 3 A partial packing diagram of (I), showing the formation of the C—H⋯π and π⋯π interactions [symmetry codes; (i) 1 − x, −y, 1 − z; (ii) 1 − x, 1 − y, 1 − z]. Hydrogen bonds are shown as dashed lines. H atoms not involved in hydrogen bonding have been omitted for clarity. |