Die Struktur der Phase Li5Sn2 / The Crystal Structure of Li5Sn2

Abstract

The crystal structure of Li₅Sn₂ has been determined. It crystallizes trigonal/rhomboedric, space group R3̅m—D⁵ _3d, a = 4.74 ± 0.01 Å, c = 19.83 ± 0.03 A, c/a = 4.18. Structural relations between Li₂Si, Li₉Ge₄ and Li₅Sn₂ are discussed.