Synthesis and characterisation of novel layered compounds, Cs2MP3O10 (M = Al or Ga), containing triphosphate groups

Abstract

The compounds Cs₂AlP₃O₁₀ and Cs₂GaP₃O₁₀ have been synthesized by solid state reactions and structurally characterised by single crystal X-ray diffraction. They are two dimensional compounds possessing corrugated [MP₃O₁₀]²⁻ anionic layers interleaved with Cs⁺ ions. The layers are built from MO₆ octahedra and bent triphosphate groups. Solid state NMR studies corroborate the presence of crystallographically distinct phosphorus atoms of triphosphate groups.