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Figure 2 Intermolecular contacts, viewed approximately along [1 1 1]. For clarity, only a selection of intra- and intermolecular contacts is depicted. Yellow dashed lines denote intramolecular hydrogen bonds, blue dashed lines denote intermolecular hydrogen bonds and green dashed lines indicate C–H⋯O contacts. Symmetry operators: i −x + 1, −y + 1, −z + 1; ii −x + 1, y + , −z + . |