Figure 3
A slice of the structure [approximation (I)] parallel to the plane (1 2)17 ∥ b*bas (shown in Fig. 2). Molecules are colored according to their (S2C6),( 4)17 angles (Table 4). Interatomic contacts shorter than ΣVDW are marked. The projection of the modulation wave q is marked in red; it makes an angle of 78° with (1 2)17 ∥ bbas. The inversion centers that lie in the plane are marked. The abas and cbas axes are shown as solid black lines. |