Darstellung und Struktur weiterer ternärer Phasen mit modifizierter K₈Ge₄₆-Käfigstruktur / Preparation and Crystal Structure of Ternary Phases with a Modified K₈Ge₄₆ Clathrat Structure

In the systems K-Al, Ga, In-Si, Ge, Sn each phase of composition K 8 (3B, 4B) 46 was prepared. The crystal structure for K 8 (Al, Ge) 48 and K 8 (Ga, Ge) 46 was determined by X-ray investigations. In the systems Na-Al, Ga-Si, Ge the compounds Na 8 (Al, Ge) 46 (crystal structure determined), Na 8 (Ga, Si) 46 and Na 8 (Ga, Ge) 46 were prepared.