Figure 3
A view along the b axis, showing the …AA… stacking of the copper hydroxide layers. Hydrogen-bonding interactions between the O1H, O2H and O3H hydroxide groups, the H2O5 and H2O6 water molecules, and the O4=C1 group, together with those involving the N1H2 and N2 groups of adjacent cyanoureate ions, are shown as dotted lines. Key: large black spheres are Cu atoms, small white spheres are O atoms, small dark-grey spheres are N atoms, small black spheres are C atoms and very small white spheres are H atoms. The symmetry codes are as in Table 2. |