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Kinetics of electrophilic exchange of lanthanide(III) and copper(II) ions in aqueous solutions of the ethylenediaminetetraacetates

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Conclusions

  1. 1.

    Electrophilic substitution in the systems RE ethylenediaminetetraacetate-copper(II) is brought about by an acidic dissociation mechanism and by an associative mechanism.

  2. 2.

    It is suggested that in acidic dissociation the exchange is limited by the rupture of the metal-oxygen bond in the intermediate protonated complex, while in the case of the associative mechanism it is limited by the rupture of the metal-nitrogen bond in the intermediate binuclear complex.

  3. 3.

    In the systems studied there are differences between the exchange mechanisms for the RE in the cerium and yttrium subgroups.

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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 5, pp. 967–972, May, 1984.

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Nikitenko, S.I., Martynenko, L.I., Pechurova, N.I. et al. Kinetics of electrophilic exchange of lanthanide(III) and copper(II) ions in aqueous solutions of the ethylenediaminetetraacetates. Russ Chem Bull 33, 889–894 (1984). https://doi.org/10.1007/BF01141690

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Keywords

  • Copper
  • Aqueous Solution
  • Cerium
  • Yttrium
  • Exchange Mechanism