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Figure 2 A view of the hydrogen-bonded strands (Dashed lines). The strands are aligned parallel to the crystallographic b axis. H atoms not involved in H-bonding have been omitted for clarity. Symmetry codes: (*) x,y+1,z; (**) x,y-1,z; (#) 1 − x,1 − y,-z; (##) 1 − x,2 − y,-z. |