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Figure 2 A larger portion of the crystal structure of (I), showing the formation of a hydrogen-bonded chain built from C—H⋯π. For clarty, H atomes not involved in the hydrogen bonding have been omitted. Dashed lines indicate hydrogen bonds. [symmetry code: (A) 2 − x, 1 − y, 1 − z, (B) 2 − x, − + y, − z, (C) x, − y, + z, (D) x, − y, + z, (E) 2 − x, + y, − z]. |