Abstract
The crystal structure of the sodium manganese(III) fluoride compound, Na5Mn3F14, has been reinvestigated. The previous structure model, assuming the non-centrosymmetric space group symmetry Pna21, has been transformed to the centrosymmetric symmetry Pnam. Least squares refinements, based on new collected single crystal X-ray diffraction data, converged smoothly with the new structural model and yielded an R-value of 0.022. The general structural features described earlier, as the structural relations to the chiolite structure, still applies. However, the changed space group symmetry introduces new symmetry constraints to e.g. some of the coordination polyhedra in the structure.
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