Figure 4
The hydrogen bonds (dashed lines) formed by the carbonate anions in (II). The H2—O2—O2—H2 molecule is disordered over two positions. Displacement ellipsoids are drawn at the 50% probability level. [Symmetry codes: (i) −x + 1, y − , −z + ; (ii) x − , −y + 1, −z + ; (iii) x − , y + , −z; (iv) −x + 1, −y, −z; (v) −x + 1, −y + 1, −z.] |