Abstract
The crystal structure of silver sulfide-sulfate α-Ag8S3SO4 was determined by X-ray powder diffraction data. The substance crystallizes in the tetragonal system and the space group P-4 with the unit cell parameters of α = 7.2032(4) A, c = 5.1043(5) A, Z = 1, Rf = 5.55%, χ2 = 3.45. The layers in the structure of the compound formed by trigonal prisms of Ag6S connected to each other through the vertices are connected by the additional atoms of sulfur into a three-dimensional framework. Distorted tetrahedral anions of SO42−are located in the cavities of the framework, the symmetry (D2d) of which was confirmed by the data of IR spectroscopy.
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