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Figure 3 Intermolecular contacts, viewed along [−1 − 1 0] (green dashed lines: C–H⋯O contacts, yellow dashed lines: intramolecular hydrogen bonds, blue dashed lines: intermolecular hydrogen bonds). Symmetry operators: i −x + 1, −y, −z + 2; ii x, −y + , z + ; iii −x, −y, −z. |