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Figure 2 Packing of the molecules. For clarity, only the donors in the original molecule and their corresponding acceptors are labelled. Symmetry codes are: (i) x, y − 1, z; (ii)-x + , y − , −z + ; (iii) x, 2 − y, 1 − z. Dashed lines indicate hydrogen bonds. H atoms not involved in hydrogen bonding have been omitted. |