Abstract
THE isolation1 of stable optical forms of the tris 2 : 2′ dipyridyl osmium II ion, Os(dipy)3++, and of the tris 2 : 2′ dipyridyl osmium III ion2, Os(dipy)3+++, permits a unique demonstration of the dynamic electronic equilibrium between the oxidized and reduced forms of an ion. It is evident that when the dextro form of the osmium II complex ion is mixed with an equivalent amount of the lævo form of the osmium III complex ion, the optical activity of both ions should vanish if such an equilibrium exists. 
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References
Burstall, F. H., Dwyer, F. P., and Gyarfas, E. C., J. Chem. Soc., 953 (1950).
Dawyer, F. P., and Gyarfas, E. C. (unpublished work).
Van Alton, J. Amer. Chem. Soc., 70, 883 (1948).
Lewis, N. B., and Coryell, C. D., Brookhaven Conf. Report. Chemistry, No. 2, 131 (1948).
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DWYER, F., GYARFAS, E. A Reaction for the Study of the Kinetics of Electron Transfer. Nature 166, 481 (1950). https://doi.org/10.1038/166481a0
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DOI: https://doi.org/10.1038/166481a0
