1. (b) Oxygen Chemistry, Oxford University Press, New York, 1991, Chap. 7;
2. (c) and Superoxide and Superoxide Dismutase, and Eds., Academic Press, New York, 1979, p. 19.
3. (a) and J. Chem. Soc. (A), 2831 (1968);
4. Reduction of decaammine-.mu.-superoxo-dicobalt ion by chromium(II), vanadium(II), europium(II) ions