Molecular Complex of Tb in the +4 Oxidation State
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https://figshare.com/articles/dataset/Molecular_Complex_of_Tb_in_the_4_Oxidation_State/8273297
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资源简介：
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(OtBu)3)4], 1-Tb,
with the tris(4-bromophenyl)amminium oxidant, [N(C6H4Br)3][SbCl6], to afford the Tb4+ complex [Tb(OSi(OtBu)3)4], 2-Tb. The solid state structures of 1-Tb and 2-Tb were determined by X-ray crystallography,
and the presence of Tb4+ was unambiguously confirmed by
electron paramagnetic resonance and magnetometry. Complex 2-Tb displays a similar voltammogram to the Ce4+ analogue
but with redox events that are about 1 V more positive.
创建时间：
2019-06-09
