Structure and properties of NaxM2SbO6·yH2O, M=Co(III), Ni(III) honeycomb oxyhydrates

Powder diffraction patterns of Na3Ni2SbO6, Na0.95Ni2SbO6·1.5H2O and Na0.95Ni2SbO6. Each pattern has been normalized in intensity. Cartoons depict the change in layer separation with hydration and give the approximate distances between layers and Ni atoms.