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Wiley, Journal of Inorganic and General Chemistry, 6(641), p. 1036-1042, 2015

DOI: 10.1002/zaac.201500089

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Syntheses and Crystal Structures of New ReO 3 -Type-Derived Transition Metal Oxide Fluorides: ReO 3 -Type-Derived Transition Metal Oxide Fluorides

Journal article published in 2015 by Suliman Nakhal, Thomas Bredow, Martin Lerch
This paper is available in a repository.
This paper is available in a repository.

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Abstract

Mixed-metal oxide fluorides MNb2O3F6 (M = Mg, Zn), MgM2OF8 (M = Ti, Zr), Fe2TiO8F, and TiNb2O5F4 were prepared by treatment of their corresponding oxides with a 1:1 mixture of hydrofluoric acid and HNO3. Crystal structures were investigated by means of X-ray powder diffraction. The anion distribution of MgZr2OF8 was studied theoretically. MNb2O3F6-type compounds can be structurally refined in the cubic ReO3 type, MgTi2OF8,and MgZr2OF8 in the cubic NaSbF6 type, Fe2TiOF8 in the rhombohedral VF3 type. All presented oxide fluorides are colorless powders and the metal ions are in the highest formal valence state.