First Example of Molybdenum Atoms in the Network of High Temperature Chevrel Phases: Moy[Mo6Se8+xSx]
| Autor: | Roger Chevrel, Marcel Sergent, Stéphanie Belin |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Superconductivity
Valence (chemistry) Transition temperature Inorganic chemistry chemistry.chemical_element Crystal structure Condensed Matter Physics Electronic Optical and Magnetic Materials Inorganic Chemistry Crystallography chemistry Molybdenum Atom Materials Chemistry Ceramics and Composites Physical and Theoretical Chemistry Stoichiometry Solid solution |
| Zdroj: | Journal of Solid State Chemistry. 145:159-166 |
| ISSN: | 0022-4596 |
| DOI: | 10.1006/jssc.1999.8234 |
| Popis: | In the literature Mo6Se8−xSx (0≤x≤4) Chevrel phase binaries are stable compounds, synthesized by solid state reaction from stoichiometric mixture of MoS2, MoSe2, and Mo powders at 1200°C. We report the single-crystal structure of these compounds. The structural determinations show as expected a classical Chevrel phase structure with a framework of pseudomolecular Mo6Se8−xSx cubic units but furthermore exhibit molybdenum atoms in the channels of the host structure of these compounds, leading to the new formula Moy[Mo6Se8−xSx] with 0≤x≤5 and y∼0.3. These extra molybdenum atoms stabilize the Chevrel phase host network and seem to be linking with a molybdenum atom of the Mo6 cluster, forming a kind of Mo7 cluster. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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