Zeitschrift für Naturforschung B · 1987 · 16 citations · 1 references
Natural SciencesChemistryMaterials ScienceCrystal StructurePhysical ChemistrySolid-state ChemistryCoordination ChemistryCoordination NumberCrystal ChemistryCrystal LatticeCrystal SystemsCrystallographyCoordination Number In Ionic CrystalsCrystal Lattice EnergeticsCrystal Structure DeterminationCrystallographic CharacterizationEffective Coordination NumberOrthorhombic Crystal LatticesOrthorhombic LatticesOrthorhombic System
Abstract KCrF 4 has been prepared as yellowish-green single crystals (by heating of KF, CuF 2 , CrF 3 ; Au-tube, 750 °C, 60d). It crystallizes in the orthorhombic crystal system (Pnma) with: a = 1573.2, b = 743.2, c = 1833.1 pm, Z = 24. The structure shows [Cr 3 F 9 F 6/2 ] 3- -columns along [010], The Madelung Part of Lattice Energie, MAPLE, is calculated and discussed, along with Effective Coordination Numbers, ECoN (via Mean Fictive Ionic Radii, MEFIR). The structure is described using SCHLEGEL-diagrams.
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