Einkristalldaten der Hochdruck- Hochtemperaturphase von BaGe2 / Structural Refinement of the High Pressure - High Temperature Phase of BaGe2

Abstract

A single crystal investigation of the high pressure - high temperature phase of BaGe2 (α-ThSi2 type of structure) has been performed. Space group I41/amd has been derived from rotation, Weissenberg and precession photographs. On a four-circle-diffractometer 1082 reflections with 0 ≤ h ≤ 8, 0 ≤ fc ≤ 8, 2̅4̅ ≤ l ≤ 24 have been measured with filtered Mo-radiation. This results in 296 independent reflections. Data of the complete structural analysis are summarized in Tabs. I and II. The final R-values are R = 6.09%, Rw= 4.19%, Rg = 4.95%.