Figure 4
A packing diagram for (III), viewed down the a axis (top left) and down the c axis (top right), showing the hydrogen-bonding network and motifs. A magnified view of the 30-membered ring motif (slightly offset from the a axis) is shown at the bottom left. A close-up view of the asymmetric unit of (III) is given at the bottom right and shows the individual hydrogen-bonding contacts. (Symmetry codes as in Table 6.) |