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Figure 2 . Part of the crystal structure of (I) showing the two-dimensional networks of molecules linked by N–H⋯O hydrogen bonds and short Cl⋯O contacts. Symmetry codes (i): −x + 2, −y + 1, −z + 1; (ii) −x + 1, −y + 1, −z + 2; (iii) −x + 2, −y + 2, −z + 1; (iv) −x + 1, −y + 2, −z + 2. H atoms not involved in hydrogen bonding were omitted. Hydrogen bonds are shown as dashed lines, Cl⋯O contacts as dotted lines. |