Počet záznamů: 1

The role of silver in the crystal structure of pyrargyrite: single crystal X-ray diffraction study

  1. 1.
    0349530 - FZU-D 2011 RIV CZ eng J - Článek v odborném periodiku
    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
    Výzkumný záměr: CEZ:AV0Z10100521
    Klíčová slova: pyrargyrite * crystal structure * non-harmonic refinement * Ag diffusion * atomic displacement parameters
    Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
    Impakt faktor: 1.026, rok: 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.
    Trvalý link: http://hdl.handle.net/11104/0189742