Doping of crystalline /CoEDTA/2 Ba and /Co(en)3/(NO3)3 by60Co2+ creates a thermodynamically dissipative structure which gives rise to an oscillatory exchange of the radiocobalt with the inactive Co/III/ of the complex ions. The same compounds in which energetic60Co atoms have been produced by neutron irradiation show kinetically the same oscillatory parameters. The Volterra-Lotka model is applied for the oscillations.