Zeitschrift für Kristallographie - Crystalline Materials · 1980 · 14 citations · 3 references
Natural SciencesMaterials EngineeringMaterials ScienceCrystal StructureSolid State PhysicsSolid-state ChemistryCrystal ChemistryCrystal LatticeCrystal SymmetryCrystallographyPhase TransitionsSpace GroupsBond LengthsCrystal Structure AnalysisCrystal Structure Determination
Abstract As many other compounds of the stochiometry M II Me IV F 6 FeZrF 6 exhibits a transition from the cubic high-temperature to a hexagonal low-temperature phase. The former is of the ordered ReO 3 -type [space group Fm 3 m ] with Fe–F- and Zr–F-bond lengths of 205 and 199 pm respectively, while the latter crystallises in the LiSbF 6 -structure [space group R [unk] m ] with similar bond distances. The linear Fe–F–Zr-bridges of the cubic phase are bent below the phase transition. The geometrical data are in good agreement with spectroscopic and structural results, previously obtained on FeZrF 6 powder samples.
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