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Thermo-analytical Investigations on the Superoxides AO2 (A = K, Rb, Cs), Revealing Facile Access to Sesquioxides A4O6

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Merz,  Patrick
Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Schmidt,  Marcus
Marcus Schmidt, Chemical Metal Science, 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

Merz, P., Schmidt, M., Felser, C., & Jansen, M. (2017). Thermo-analytical Investigations on the Superoxides AO2 (A = K, Rb, Cs), Revealing Facile Access to Sesquioxides A4O6. Zeitschrift für anorganische und allgemeine Chemie, 643(8), 544-547. doi:10.1002/zaac.201700013.


Cite as: https://hdl.handle.net/11858/00-001M-0000-002D-2A64-6
Abstract
Rb4O6 and Cs4O6 represent open shell p electron systems, featuring charge, spin, orbital and structural degrees of freedom, which makes them unique candidates for studying the ordering processes related, otherwise exclusively encountered in transition metal based materials. Probing the physical responses has been restrained by the intricacy of synthesizing appropriate amounts of phase pure samples. Tracing the thermal decomposition of respective superoxides has revealed that at least the rubidium and cesium sesquioxides exist in thermodynamic equilibrium, appropriate p-T conditions given. These insights have paved the way to highly efficient and convenient access to Rb4O6 and Cs4O6.