Figure 11
The molecular packing in (III) , showing the R22(8) hydrogen-bonding interaction (dashed lines) between the nitro group and the bridge N—H and C—H groups. For clarity, only the H atoms of the bridge are shown. See Table 6 for contact geometries. [Symmetry codes: (i) x − 1, y + 1, z; (ii) x, y − 1, z; (iii) x + , −y + 1, z + ; (iv) x − , −y + 2, z + .] |