Röntgenstrukturuntersuchungen an den polymorphen Elpasolithen K2LiAlF6 und Rb2LiGaF6

Structures and thermodynamics of the mixed alkali alanates

“…This trend also seems to apply to the "true" elpasolites, M 2 M ′ AlF 6 . Each of the stable bialkali aluminum hydrides (M, M ′ = Li, Na or K) has a corresponding fluoride compound with a similar lattice constant (±0.2 Å) [35,36,37] in the F m 3m space group. Analogous to the hydrides, there are no reported fluorides where M ′ is greater than M.…”

Luminescence Enhancement of K2LiAlF6:Mn4+ Phosphors by Zn2+-Mediated Charge Compensation for Fast-Response Backlighting Applications

“…Structure and Composition. K 2 LiAlF 6 was synthesized and its X-ray diffraction result was refined according to the crystal structure data of K 2 LiAlF 6 published by Graulich et al, 21 as shown in Figure 3a. The calculated values of X-ray diffraction spectra agree well with the measured values (R wp = 7.80%, R p = 6.08%), indicating that a cubic phase (space group = Fm3̅ m, a = 7.853 Å) of K 2 LiAlF 6 matrix has been successfully synthesized.…”

An empirical model to calculate 19F isotropic chemical shifts in alkali-hexafluoroaluminates

“…For this purpose the corresponding structural data published in recent literature have been used [26,[29][30][31] and only cations with a maximum M-F distance of 3.5 Å have been taken into account. As Bureau et al [13] state that the s l -values calculated with their model are usually overestimated by 15%, also the corrected results are given.…”