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The role of silver in the crystal structure of pyrargyrite: single crystal X-ray diffraction study
- 1.0349530 - FZÚ 2011 RIV CZ eng J - Journal Article
Laufek, F. - Sejkora, J. - Dušek, Michal
The role of silver in the crystal structure of pyrargyrite: single crystal X-ray diffraction study.
Journal of Geosciences. Roč. 55, č. 2 (2010), 161-167. ISSN 1802-6222. E-ISSN 1803-1943
Institutional research plan: CEZ:AV0Z10100521
Keywords : pyrargyrite * crystal structure * non-harmonic refinement * Ag diffusion * atomic displacement parameters
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 1.026, year: 2010
The crystal structure of pyrargyrite, Ag3SbS3, from Příbram–Háje (Czech Republic) was refined from single-crystal X-ray diffraction data in the space group R3c to an R factor of 0.0112. In order to mimic the spread of electron density of silver, the non-harmonic Gram–Charlier development of the silver atomic displacement parameters was applied. The analysis of potential barriers between Ag sites reveals that silver transfer is equally probable not only within the Ag–S–Ag spirals and the Ag–Ag chains, but also between these spirals and chains.
Permanent Link: http://hdl.handle.net/11104/0189742
Number of the records: 1