Molecular Complex of Tb in the +4 Oxidation State.

@article{Palumbo2019MolecularCO,
  title={Molecular Complex of Tb in the +4 Oxidation State.},
  author={Chad T. Palumbo and Ivica Živkovi{\'c} and Rosario Scopelliti and Marinella Mazzanti},
  journal={Journal of the American Chemical Society},
  year={2019}
}
Lanthanides (Ln) usually occur in the +3, or more recently the +2, oxidation states. The only example of an isolated molecular Ln4+ so far remains Ce4+. Here we show that the +4 oxidation state is also accessible in a molecular compound of terbium as demonstrated by oxidation of the tetrakis(siloxide)terbium(III) ate complex, [KTb(OSi(O tBu)3)4], 1-Tb, with the tris(4-bromophenyl)amminium oxidant, [N(C6H4Br)3][SbCl6], to afford the Tb4+ complex [Tb(OSi(O tBu)3)4], 2-Tb. The solid state… 
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