Figure 3
Views of the planar K2 substructures, showing the K2 chains formed by the corresponding O,O′-bridging ligands in (a) structure (I) [symmetry codes: (iv) x, y + 1, z; (v) x − 1, y + 1, z] and (b) structure (II) [symmetry codes: (ii) x, −y + , z − ; (iv) x, y − 1, z]. H atoms have been omitted for clarity. |