Reference : Na(1.50)Mn(2.48)Al(0.85)(Po4)3, a New Synthetic Alluaudite-Type Compound
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Na(1.50)Mn(2.48)Al(0.85)(Po4)3, a New Synthetic Alluaudite-Type Compound
Hatert, Frédéric mailto [Université de Liège - ULiège > Département de géologie > Minéralogie et cristallochimie >]
Acta Crystallographica Section C-Crystal Structure Communications
Blackwell Publishing
Pt 1
Yes (verified by ORBi)
[en] The first hydrothermal synthesis of an Al-rich alluaudite-type compound, namely disodium dimanganese aluminium tris(phosphate), which has been obtained at 1073 K and 0.1 GPa starting from the composition Na2Mn2Al(PO4)(3), is reported. The crystal structure, which has been refined in the monoclinic C2/c space group, is identical to that of natural alluaudite. The structure consists of kinked chains of edge-sharing M1 and M2 octahedra, which contain Mn2+ and Al3+ ions. The chains are stacked parallel to {101} and are connected in the b direction by the P1 and P2 tetrahedra. These interconnected chains produce channels parallel to c, which contain the large A1 and AT sites occupied by Na+ and Mn2+ ions.
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