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Figure 2 Chain-like structure of 1 along with intramolecular and intermolecular hydrogen bonds (dashed lines). The bonds within the chain propagation are dark grey. The oxygen atoms with half ocupancy are drawn as half-transparent balls. Symmetry codes: i: 1 − x, 0.5 + y, 0.5 − z; ii: 1 − x, −0.5 + y, 0.5 − z; iii: x, 1.5 − y, −0.5 − z; iv: 1 − x, 1 − y, − z; v: 1 − x, 2 − y, − z; vi: − x, −0.5 + y, 0.5 − z. |