Darstellung und Kristallstruktur der Phasen Li 26 Na 58 Ba 38 E x (E = N, H; x = 0 – 1)

Preparation and Crystal Structures of Li 26 Na 58 Ba 38 E x Phases (E = N, H; x = 0 – 1) Li 26 Na 58 Ba 38 E x (E = N, H; x = 0–1) were prepared as a majority phase by the reactions of the metals with Ba(N 3 ) 2 or BaH 2 at 250 °C for five days. According to single crystal and powder X‐ray diffraction investigation, all compounds are cubic, space group $F{\bar 4}{\rm 3}m$ with the unit cell parameter a ranging from 27.335(2) (x = 0) to 27.554(3) (x = 1, E = N, H) Å and Z = 4. This compound series can be described as a filled variant of Li 13 Na 29 Ba 19 , in which nitrogen or hydrogen atoms are found in the centre of Li 26 clusters in tetrahedral environment. Li 26 Na 58 Ba 38 E x represents a new group of metal‐rich compounds extending the growing family of subnitrides.