Predictions of redox potentials of Sg in acid solutions as a function of pH

摘要

Summary. Redox potentials of Sg in acid solutions as a function of pH are predicted. The work is based on earlier estimates of standard redox potentials via a correlation with multiple ionization potentials of group-6 elements calculated using a multiconfiguration Dirac–Fock method. As expected, most of the potentials, except for those from the M~(3+) to the M~(2+) and M (M = Cr, Mo, W and Sg) states, decrease with increasing pH, with the most pronounced effect for the M~(IV)/M~(III) couple. The obtained values show that the reduction of Sg to the IV and III states should be feasible in HCl solutions in a pH range from 0 to 3 or 4.