WebElements Periodic Table of the Elements | Lithium

Lithium compounds: dilithium peroxide

The lithium in dilithium peroxide formally is in the oxidation state 1.

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Element percentages for the elements in dilithium peroxide
Element	%
Li	30.26
O	69.74

One way to make lithium peroxide is to react lithium metal in liquid ammonia with with contolled amounts of oxygen.

2Li(NH₃) + O₂ → Li₂(O₂)

Crystal structure of dilithium peroxide

What follows is the calculated isotope pattern for the Li₂O₂ unit with the most intense ion set to 100%.

Formula: Li₂O₂

mass  %
44   0.7 
45  16.2 ________
46 100.0 __________________________________________________
47   0.1 
48   0.4

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.