Figure 1
A packing view of (I) along the c axis, showing the organization of chains into planes parallel to (001). The plane at z ≃ (top) is drawn using heavy lines, while the plane at z ≃ (below) is represented by lighter lines. Note that chains in one plane are perpendicular to those in the neighbouring plane. Class B hydrogen bonds, linking chains into planes, are represented by broken lines; these are only shown in the top plane for clarity. For symmetry codes, refer to Table 2. |