K2GeTe4, ein pertelluridogermanat mit kettenstruktur

Abstract The new compound K 2 GeTe 4 crystallizes in the monoclinic system, space group P 2 1 c (No 14) with lattice constants a = 1270.3 ± 0.6 pm, b = 868.0 ± 0.4 pm, c = 982.9 ± 0.4 pm, s = 104.8 ± 0.1°. In the structure there are GeTe 4 -tetrahedra, connected by Te 2 -bridges to infinite chains.