Li2Pt3Se4: a new lithium platinum selenide with jaguéite-type crystal structure by multianvil high-pressure/high-temperature synthesis
| Autor: | Gunter Heymann, Elisabeth Selb |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Inorganic chemistry
Platinum compounds chemistry.chemical_element 02 engineering and technology General Chemistry Crystal structure 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Chrisstanleyite 0104 chemical sciences chemistry.chemical_compound Crystallography chemistry High pressure Selenide X-ray crystallography Lithium 0210 nano-technology Platinum |
| Zdroj: | Zeitschrift für Naturforschung B. 71:1095-1104 |
| ISSN: | 1865-7117 0932-0776 |
| DOI: | 10.1515/znb-2016-0165 |
| Popis: | The monoclinic lithium platinum selenide Li2Pt3Se4 was obtained via a multianvil high-pressure/high-temperature route at 8 GPa and 1200°C starting from a stoichiometric mixture of lithium nitride, selenium, and platinum. The structure of the ternary alkali metal-transition metal-selenide was refined from single-crystal X-ray diffractometer data: P21/c (no. 14), a=525.9(2), b=1040.6(2), c=636.5(2) pm, β=111.91(1)°, R1=0.0269, wR2=0.0569 (all data) for Li2Pt3Se4. Furthermore, the isostructural mineral phases jaguéite (Cu2Pd3Se4) and chrisstanleyite (Ag2Pd3Se4) were reinvestigated in their ideal stoichiometric ratio. The syntheses of the mineral phases were also carried out under multianvil conditions. Single-crystal data revealed a hitherto not described structural disorder of the transition metal atoms. |
| Databáze: | OpenAIRE |
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