Figure 3
Part of the crystal packing of (I), showing classical hydrogen bonds and other interactions as dashed lines in the layers. H atoms not involved in hydrogen bonding have been omitted for clarity. [Symmetry codes: (i) −x + , −y + 1, z + ; (ii) −x − , −y + 1, z + ; (iii) −x − , −y + 1, z − .] |