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Figure 2 Selected intermolecular contacts, viewed along [0 0 − 1]. For clarity, the aromatic substituents on the tertiary nitrogen atom are omitted. Green dashed lines indicate C–H⋯O contacts, blue dashed lines indicate classical hydrogen bonds. Symmetry operators: i −x + 1, y + , −z + ; ii x + 1, −y + , z + . |
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