Figure 7
A view of the ladder structure of (Ic). Hydrogen bonds are shown as dashed lines and C-bound H atoms have been omitted for clarity. Displacement ellipsoids are drawn at the 50% probability level. [Symmetry codes: (i) −x + 1, −y + 1, −z + 1; (ii) x + 1, y, z; (iv) −x + 2, −y + 1, −z + 1; (v) x − 1, y, z.] |