Notes. The value of 0.33 for thermal radicals is obtained from the second panel of Fig. 6. The unity value for radiolysis is based on the lack of plateau at 3 Å at high energies (Fig. 6) indicating that non-reactive events come from diffusion out of the reaction center (not covered by the models). The values for chemical and photon energy come from the values at 3 Å of the third, fourth, and fifth panels of Fig. 6. The values collated in this table still do not include possible spin degeneracies, see last paragraph of Sect. 4.