Crystal and electronic structure study of AgPd3Se
| Autor: | J. Drahokoupil, Dmitriy A. Chareev, Qisheng Lin, Anna Vymazalová, T. M. Vasilchikova, František Laufek, A. V. Kristavchuk |
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| Rok vydání: | 2011 |
| Předmět: |
Materials science
Inorganic chemistry Space group Quasicrystal Electronic structure Crystal structure Condensed Matter Physics Electronic Optical and Magnetic Materials Inorganic Chemistry Crystal Crystallography X-ray crystallography Materials Chemistry Ceramics and Composites Physical and Theoretical Chemistry Isostructural Penrose tiling |
| Zdroj: | Journal of Solid State Chemistry. 184:2794-2798 |
| ISSN: | 0022-4596 |
| Popis: | The AgPd3Se compound was synthesised from individual elements by solid-state chemical reactions and structurally characterized by powder X-ray diffraction data. AgPd3Se displays cubic symmetry, space group Pa3, unit cell parameter a=8.6289(1) A and Z=8. Double-Friauf polyhedra (DFP), defined by Pd and Se atoms, form the basic structural building block of the AgPd3Se crystal structure. The Ag atoms occupy the centres of DFPs forming an Ag–Ag dimer (2.792(2) A). The packing of DFPs forms two kinds of interpenetrating networks that show similar features as three-dimensional Penrose tiles. AgPd3Se is isostructural with CaAu3Ga. The electric resistivity as well as the electronic structure calculation suggests metallic behaviour. |
| Databáze: | OpenAIRE |
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