| | 1 | Author
| M. Artin Jansenb, *. Sonderdruckanforderungen, ProfM. Dr, Jansen | Requires cookie* | | | Title
| Darstellung und Kristallstruktur von Hexacaesium-hexatellurido- digermanat(III) (Cs6G e2Te6)  | | | | Abstract
| Preparation and Crystal Structure o f H exa-caesiu m -h exatellurido-d igerm an ate(III) (C s6G e 2Te6) Bernd F ried e3 The new com pound hexacaesium hexatellurido digerm anate(III), Cs6G e2Te6, has been prepared by reacting the elements in a stoichiometric ratio at 923 K in an evacuated silica glass tube. The title com pound crystallizes as black columns and is iso-structural to K6G e2Te6 (C2/c, a = 17.027(2), b = 14.237(1), c = 10.104(1) Ä, ß = 96.701(8)°, Z = 4 (5130 reflections, R 1 (I > 2 o (I)) = 0.042). The structure ist composed of isolated distorted Te6 octahedra, with G e-G e dumbbells at the centres. The caesium cations are arranged between the isolated G e2Te6 octahedra. The Ge-Ge bond lengths in A 6G e2Te6 (A = alkali metal) increase significantly as the counter ions are varied from sodium to caesium. | | | |
Reference
| Z. Naturforsch. 54b, 1095—1097 (1999); eingegangen am 7. Juni 1999 | | | |
Published
| 1999 | | | |
Keywords
| Hypotelluride, Telluridodigermanate, Caesium, X-Ray D ata | | | |
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