Crystal structure of new triple molybdate AgMg3Ga(MoO4)5 from Rietveld refinement

, crystal structure and electrophysical properties of triple molybdates containing silver, gallium and divalent metals A possibility of the triple molybdates formation with both NASICON-like and NaMg 3 In(MoO 4) 5 structures in the Ag 2 MoO 4-AMoO 4-Ga 2 (MoO 4) 3 (A = Mn, Co, Zn, Ni) systems was studied by powder X-ray diffraction analysis. It was established that NASICON-like phases Ag 1−x A 1−x Ga 1+x (MoO 4) 3 are not formed. The triple molybdates AgA 3 Ga (MoO 4) 5 (A = Mn, Co, Zn) isostructural to triclinic NaMg 3 In(MoO 4) 5 (sp. gr. P1, Z = 2) were synthesized and characterized. The structure of the obtained compounds was refined for AgZn 3 Ga(MoO 4) 5 according to the powder data by the Rietveld method. The structure consists of MoO 4 tetrahedra, couples of edge-shared M(1)O 6 octahedra, and trimers of edge-shared M(2)O 6-, M(3) 6and M(4)O 6 octahedra, which are linked by the common vertices to form a 3D framework. High-temperature conductivity measurements revealed that the conductivity of AgMn 3 Ga(MoO 4) 5 at 500 °С reaches 10-2 S / cm, which is close to one of the known NASICON-type ionic conductors.

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Crystal structure of new triple molybdate AgMg₃Ga(MoO₄)₅ from Rietveld refinement

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References 13 publications

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Effect of substituting Y3+/W6+/F− ions on the luminescent properties of novel red-emitting NaMg3In(MoO4)5: Eu3+ phosphors for white LED

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Synthesis, crystal structure and electrophysical properties of triple molybdates containing silver, gallium and divalent metals

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