Figure 1: Energies of electron transfer 1+Mg(H2O)n2+ → 1+• +Mg(H2O)n+ (curve 1) and 2+Mg(H2O)n2+ → 2+• +Mg(H2O)n+• (curve 2) as a function of the number of water molecules n in hydrated complex Mg(H2O)n2+.