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Redox reactions of group 5 elements, including element 105, in aqueous solutions

Standard redox potentials E^0(M^z+x/M^z+) in acidic solutions for group 5 elements including element 105 (Ha) and the actinide, Pa, have been estimated on the basis of the ionization potentials calculated via the multiconfiguration Dirac-Fock method. Stability of the pentavalent state was shown to increase along the group from V to Ha, while that of the tetra- and trivalent states decreases in this direction. Our estimates have shown no extra stability of the trivalent state of hahnium. Element 105 should form mixed-valence complexes by analogy with Nb due to the similar values of their potentials E^0(M^3+/M^2+). The stability of the maximumoxidation state of the elements decreases in the direction 103 > 104 > 105.

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@article{urn:nbn:de:hebis:34-2008102224715,
  author    ={Ionova, Galina V. and Pershina, Valerija G. and Johnson, Elijah and Fricke, Burkhard and Schädel, Matthias},
  title    ={Redox reactions of group 5 elements, including element 105, in aqueous solutions},
  copyright  ={https://rightsstatements.org/page/InC/1.0/},
  language ={en},
  year   ={1992}
}