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Thermo‐analytical Investigations on the Superoxides A O 2 ( A = K, Rb, Cs), Revealing Facile Access to Sesquioxides A 4 O 6
Author(s) -
Merz Patrick,
Schmidt Marcus,
Felser Claudia,
Jansen Martin
Publication year - 2017
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201700013
Subject(s) - rubidium , degrees of freedom (physics and chemistry) , thermal decomposition , chemistry , metal , materials science , thermodynamics , physics , potassium , organic chemistry
Rb 4 O 6 and Cs 4 O 6 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 Rb 4 O 6 and Cs 4 O 6 .