Figure 3
A perspective view of the packing of (I) in the unit cell, viewed approximately down the a axial direction. Hydrogen-bonding associations are shown as broken lines; H atoms not involved in hydrogen bonding have been omitted. [Symmetry codes: (ix) x − 1, y, z − 1; (x) x, y, 1 + z; for other codes, see Table 2.] |