Synthesis and Structure of Ag 4 Te(SO 4 ) – a New Compound Featuring a Silver‐Telluride Framework

Tetrasilver telluride sulfate was obtained as a black air‐stable polycrystalline powder; its structure was determined from X‐ray powder diffraction data. The new compound crystallizes in the cubic space group P 2 1 3, with the unit cell parameter a = 8.6263(2) Å and Z = 4. The crystal structure of A...

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Published in:Zeitschrift für anorganische und allgemeine Chemie (1950) 2010-09, Vol.636 (11), p.1941-1946
Main Authors: Shestimerova, Tatiana A., Mitiaev, Alexander S., Davliatshin, Dmitry I., Shevelkov, Andrei V.
Format: Article
Language:English
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Summary:Tetrasilver telluride sulfate was obtained as a black air‐stable polycrystalline powder; its structure was determined from X‐ray powder diffraction data. The new compound crystallizes in the cubic space group P 2 1 3, with the unit cell parameter a = 8.6263(2) Å and Z = 4. The crystal structure of Ag 4 Te(SO 4 ) is composed of a positively charged silver‐telluride three‐dimensional framework, in which the isolated tetrahedral SO 4 2– anions are embedded. The framework features an irregular coordination for tellurium atoms with a coordination number of six and manifold Ag–Ag contacts ranging from 2.99 to 3.14 Å. The distortion of the SO 4 2– anion as well as the interactions within the framework and between the framework and the SO 4 2– anions are analyzed with the help of the structural data, vibrational spectra, and band structure calculations.
ISSN:0044-2313
1521-3749
DOI:10.1002/zaac.201000060