Dicaesium oxide

The following are some synonyms of dicaesium oxide:

The oxidation number of caesium in dicaesium oxide is 1.

Synthesis

If caesium is burned in air, the result is mainly formation of orange caesium superoxide, CsO₂. The resulting CsO₂ can be converted into Cs₂O by the careful reaction of CsO₂ with caesium metal under nitrogen.

Cs(s) + O₂(g) → CsO₂(s)

CsO₂(s) + 3Cs(s) → 2Cs₂O(s)

Solid state structure

• Geometry of caesium: 3 coordinate: pyramidal
• Prototypical structure:

Element analysis

The table shows element percentages for Cs₂O (dicaesium oxide).

Isotope pattern for Cs₂O

The chart below shows the calculated isotope pattern for the formula Cs₂O with the most intense ion set to 100%.

References

The data on these compounds pages are assembled and adapted from the primary literature and several other sources including the following.

• R.T. Sanderson in Chemical Periodicity, Reinhold, New York, USA, 1960.
• N.N. Greenwood and A. Earnshaw in Chemistry of the Elements, 2nd edition, Butterworth, UK, 1997.
• F.A. Cotton, G. Wilkinson, C.A. Murillo, and M. Bochmann, in Advanced Inorganic Chemistry, John Wiley & Sons, 1999.
• A.F. Trotman-Dickenson, (ed.) in Comprehensive Inorganic Chemistry, Pergamon, Oxford, UK, 1973.
• R.W.G. Wyckoff, in Crystal Structures, volume 1, Interscience, John Wiley & Sons, 1963.
• A.R.West in Basic solid state chemistry Chemistry, John Wiley & Sons, 1999.
• A.F. Wells in Structural inorganic chemistry, 4th edition, Oxford, UK, 1975.
• J.D.H. Donnay, (ed.) in Crystal data determinative tables, ACA monograph number 5, American Crystallographic Association, USA, 1963.
• D.R. Lide, (ed.) in Chemical Rubber Company handbook of chemistry and physics, CRC Press, Boca Raton, Florida, USA, 77th edition, 1996.
• J.W. Mellor in A comprehensive treatise on inorganic and theoretical chemistry, volumes 1-16, Longmans, London, UK, 1922-1937.
• J.E. Macintyre (ed.) in Dictionary of inorganic compounds, volumes 1-3, Chapman & Hall, London, UK, 1992.