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Isothermal section of the Ag2S-PbS-GeS2 system at 300 K and the crystal structure of Ag2PbGeS4 |
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| Authors: | Yu KogutA Fedorchuk O ZhbankovYa Romanyuk I KitykL Piskach O Parasyuk |
| Affiliation: | a Department of Inorganic and Physical Chemistry, Volyn State University, 13 Voli Avenue, 43025 Lutsk, Ukraine b Department of Inorganic and Organic Chemistry, Lviv National University of Veterinary Medicine and Biotechnologies, 50 Pekarska St., 79010 Lviv, Ukraine c EMPA, Swiss Federal Laboratories for Materials Testing and Research, 8600 Dubendorf, Switzerland d Electrical Engineering Department, Czestochowa University of Technology, Al. Armii Krajowej 17/19, 42-200 Czestochowa, Poland |
| Abstract: | The isothermal section of the Ag2S-PbS-GeS2 system at room temperature was investigated by XRD. The existence of two quaternary compounds, Ag2PbGeS4 and Ag0.5Pb1.75GeS4, was confirmed, and the phase equilibria between the binary system components and the ternary and the quaternary compounds were determined. The crystal structure of Ag2PbGeS4 was studied using the single crystal X-ray diffraction. It was established that Ag2PbGeS4 crystallizes in an own structural type in non-centrosymmetric space group Ama2 with the lattice parameters a = 1.02390(4) nm, b = 1.02587(5) nm, c = 0.67701(3) nm. |
| Keywords: | Chalcogenides Crystal structure Isothermal section |
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