Figure 8
(a) Sheet-like packing of 3 as viewed approximately perpendicular to the (01) plane, showing the layers of dianion and associated dimethylammonium cations, and (b) view highlighting the hydrogen-boning network (intermolecular contacts) between dimethylammonium cations and the dianions. [Symmetry codes: (i) x, y, z − 1; (ii) −x + 1, −y, −z + 1; (iii) 1 − x, −y, −z.] |