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New Ag8PtO6 : synthesis, crystal structure, physical properties and theoretical analyses

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Thakur,  Gohil Singh
Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Rosner,  H.
Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Fecher,  Gerhard H.
Gerhard Fecher, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Felser,  Claudia
Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Jansen,  Martin
Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Citation

Thakur, G. S., Reuter, H., Rosner, H., Fecher, G. H., Felser, C., & Jansen, M. (2019). New Ag8PtO6: synthesis, crystal structure, physical properties and theoretical analyses. Dalton Transactions, 48(15), 5058-5063. doi:10.1039/c8dt05081c.


Cite as: http://hdl.handle.net/21.11116/0000-0003-BDAC-7
Abstract
We report the synthesis, crystal structure, and basic physical properties of Ag 8 PtO 6 , which represents the first silver platinum ternary oxide. The crystalline compound was obtained from appropriate mixtures of the binary constituents under alkaline conditions at high oxygen pressure, while applying relatively mild thermal conditions (573 K). Ag 8 PtO 6 crystallizes in a new crystal structure in the triclinic system (P1). The structure consists of slightly distorted, discrete PtO 6 octahedra, which are linked via O-Ag-O dumbbells to form a three dimensional framework. It is a diamagnetic semiconductor with a band gap of 0.9 eV. DFT based calculations confirm an electronic ground state that corresponds to a 5d 6 6s 0 configuration of the Pt atoms, in accordance with the observed diamagnetism. © 2019 The Royal Society of Chemistry.