Rubidium sesquioxide explained

Rubidium sesquioxide is a chemical compound with the formula or more accurately . In terms of oxidation states, Rubidium in this compound has a nominal charge of +1, and the oxygen is a mixed peroxide and superoxide for a structural formula of .^[1] It has been studied theoretically as an example of a strongly correlated material.^[2]

The compound was predicted to be a rare example of a ferromagnetic compound that is magnetic due to a p-block element,^[3] and a half-metal that was conducting in the minority spin band.^[4] However, while the material does have exotic magnetic behavior, experimental results instead showed an electrically insulating magnetically frustrated system.^[5] also displays a Verwey transition where charge ordering appears at 290 K.^[6]

Rubidium sesquioxide can be prepared by reacting the peroxide and the superoxide :^[7]

It is initially discovered in 1907,^[8] and more thoroughly characterized in 1939. The compound crystallizes in a body-centered cubic form with the same crystal structure as and .^[9]

See also

• Rubidium oxide

Notes and References

1. Winterlik . Jürgen . Fecher . Gerhard H. . Jenkins . Catherine A. . Medvedev . Sergey . Felser . Claudia . Kübler . Jürgen . Mühle . Claus . Doll . Klaus . Jansen . Martin . Palasyuk . Taras . Trojan . Ivan . Eremets . Mikhail I. . Emmerling . Franziska . 5. Exotic magnetism in the alkali sesquioxides Rb₄O₆ and Cs₄O₆ . Physical Review B . 79 . 21 . 2009-06-09 . 1098-0121 . 10.1103/physrevb.79.214410 . 214410. 0904.4338. 2009PhRvB..79u4410W . 118706339 .
2. Winterlik . Jürgen . Fecher . Gerhard H. . Jenkins . Catherine A. . Felser . Claudia . Mühle . Claus . Doll . Klaus . Jansen . Martin . Sandratskii . Leonid M. . Kübler . Jürgen . Challenge of Magnetism in Strongly Correlated Open-Shell 2p Systems . Physical Review Letters . American Physical Society (APS) . 102 . 1 . 2009-01-05 . 0031-9007 . 10.1103/physrevlett.102.016401 . 016401. 19257217 . 2009PhRvL.102a6401W .
3. Attema . Jisk J. . de Wijs . Gilles A. . Blake . Graeme R. . de Groot . Robert A. . Anionogenic Ferromagnets . Journal of the American Chemical Society . American Chemical Society (ACS) . 127 . 46 . 2005 . 0002-7863 . 10.1021/ja0550834 . 16325–16328. 16287327 .
4. Attema . J J . Wijs . G A de . Groot . R A de . Spintronic materials based on main-group elements . Journal of Physics: Condensed Matter . IOP Publishing . 19 . 16 . 2007-04-05 . 0953-8984 . 10.1088/0953-8984/19/16/165203 . 165203. 2007JPCM...19p5203A .
5. Winterlik . Jürgen . Fecher . Gerhard H. . Felser . Claudia . Mühle . Claus . Jansen . Martin . Challenging the Prediction of Anionogenic Ferromagnetism for Rb₄O₆ . Journal of the American Chemical Society . American Chemical Society (ACS) . 129 . 22 . 2007-05-15 . 0002-7863 . 10.1021/ja071490z . 6990–6991. 17500525 .
6. Knaflič . T. . Jeglič . P. . Komelj . M. . Zorko . A. . Biswas . P. K. . Ponomaryov . A. N. . Zvyagin . S. A. . Reehuis . M. . Hoser . A. . Geiß . M. . Janek . J. . Adler . P. . Felser . C. . Jansen . M. . Arčon . D. . 5. Spin-dimer ground state driven by consecutive charge and orbital ordering transitions in the anionic mixed-valence compound Rb₄O₆ . Physical Review B . 101 . 2 . 2020-01-22 . 2469-9950 . 10.1103/physrevb.101.024419 . 024419. 1911.12049. 2020PhRvB.101b4419K . 208309918 .
7. Jansen . Martin . Korber . Nikolaus . Neue Untersuchungen zu Präparation und Struktur von Rb₄O₆ . Zeitschrift für anorganische und allgemeine Chemie . Wiley . 598 . 1 . 1991 . 0044-2313 . 10.1002/zaac.19915980116 . 163–173 . de.
8. Annales de chimie et de physique. 11. 1907. 414. M. E.. Rengade. Contribution A L'Etude Des Oxydes Anhydres des Métaux Alcalins. fr.
9. Helms . Alfred . Klemm . Wilhelm . Über die Kristallstrukturen der Rubidium- und Cäsiumsesquioxyde . Zeitschrift für anorganische und allgemeine Chemie . Wiley . 242 . 2 . 1939-08-29 . 0863-1786 . 10.1002/zaac.19392420210 . 201–214. de.