Figure 12
Part of the crystal structure of (II), showing the formation of the centrosymmetric R22(22) motif which links the (10) sheets. Hydrogen bonds are shown as dashed lines. For the sake of clarity, H atoms not involved in the motif shown have been omitted. Atoms marked with an asterisk (*) are at the symmetry position (−x + 1, −y + 1, −z + 1). |