Synthesis, and Crystal Structure of Phosphates with Yavapaiite Type-structur
Résumé
The synthesis and structural study of three new Ba2SbM(PO4)4 (M = Sc and Yb) phosphates, abbreviated as [Sc] and [Yb], were prepared by solid state reaction in air atmosphere and their structures has been solved ab initio by Rietveld analysis. The three phases crystallize in the Yavapaiite structure with C2/m space group (Z = 2), with cell parameters a = 8.292(1) Å; b = 5.234(3) Å c = 7.878(7) Å and β = 93.81(1)° for [Sc], and a = 8.345(1) Å; b = 5.265(3) Å c = 7.977(3) Å and β = 94.22(1) ° for [Yb].
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