Facile Construction of Yttrium Pentasulfides from Yttrium Alkyl Precursors: Synthesis, Mechanism, and Reactivity
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https://figshare.com/articles/dataset/Facile_Construction_of_Yttrium_Pentasulfides_from_Yttrium_Alkyl_Precursors_Synthesis_Mechanism_and_Reactivity/4622596
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资源简介：
Treatment of the yttrium dialkyl
complex TpMe2Y(CH2Ph)2(THF) (TpMe2 = tri(3,5 dimethylpyrazolyl)borate, THF = tetrahydrofuran) with
S8 in a 1:1 molar ratio in THF at room temperature afforded
a yttrium pentasulfide TpMe2Y(κ4-S5) (THF) (1) in 93% yield. The yttrium monoalkyl
complex TpMe2CpYCH2Ph(THF) reacted with
S8 in a 1:0.5 molar ratio under the same conditions to
give another yttrium pentasulfide [(TpMe2)2Y]+[Cp2Y(κ4-S5)]− (10) in low yield. Further investigations
indicated that the S52– anion facilely
turned into the corresponding thioethers or organic disulfides, and
released the redundant S8, when it reacted with some electrophilic
reagents. The mechanism for the formation of the S52– ligand has been investigated by the controlling of
the reaction stoichiometric ratios and the stepwise reactions.
创建时间：
2017-02-06
