Abstract: | On New Hexafluoroaluminates (III) Due to Guinier-Simon powder photographs we obtained by heating mixtures of binary fluorides in a closed system 15 hitherto unknown cubic, colourless Elpasolithes. Cs2AgAIF6 crystallizes hexagonal in the Cs2NaCrF6-type of structure, but at high pressure conditions (p = 60 kbar) cubic as an Elpasolithe. The Madelung Part of Lattice Energy, MAPLE, is calculated and discussed. |