Figure 1
The packing of the YbO8 and YbO7 polyhedra in (I), viewed along the a axis, showing interstitial water molecules. Large light-grey spheres denote water molecules, small light-grey spheres hydroxide groups, small dark-grey spheres carboxylate O atoms, grey and light-grey polyhedra [YbO8] units, dark-grey polyhedra [YbO7] units, and interlaced black triangles acetate groups. |