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Figure 2 Part of the crystal structure showing hydrogen bonds with dotted lines. H-atoms not involved in hydrogen bonding have been excluded. The atoms labeled C13, N1 and C12 are related by the symmetry operators: −0.5+x, 1.5-y, −z; 1.5-x, 0.5+y, z and 0.5-x, −0.5+y, z, respectively. |