Theoretical Estimates Of Redox Potentials For Group 6 Elements, Including Element 106, Seaborgium, In Acid Solutions

Standard reduction potentials for group 6 elements, including element 106 (Sg), in acid solutions have been estimated on the basis of ionization potentials calculated using the multiconfiguration Dirac-Fock method. The stability of the 6+ oxidation state is shown to increase within group 6, while that of the 5+, 4+, and 3+ states is shown to decrease. No extra stability of the 4+ oxidation state of Sg can be inferred. Thus, no deviation from the Mendeleev-type periodicity is found for group 6 elements.