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Figure 3 A partial packing view of (I), showing the formation of a hydrogen-bonded chain along a, built from C—H⋯Cg1(π) interactions, Cg1: C6-C11. For clarity, H atoms not involved in hydrogen bonding have been omitted. Dashed lines indicate hydrogen bonds. [symmetry code: (A) − x, y, − z, (I) − x, − + y, − z, (J) 1 − x, −1 + y, − z]. |