Probing the Reactivity and Electronic Structure of a Uranium(V) Terminal Oxo Complex
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Treatment of the U(III)–ylide adduct U(CH2PPh3)(NR2)3 (1, R = SiMe3) with TEMPO generates the U(V) oxo metallacycle [Ph3PCH3][U(O)(CH2SiMe2NSiMe3)(NR2)2] (2) via O-atom transfer, in good yield. Oxidation of 2 with 0.85 equiv of AgOTf affords the neutral U(VI) species U(O)(CH2SiMe2NSiMe3)(NR2)2 (3). The electronic structures of 2 and 3 are investigated by DFT analysis. Additionally, the nucleophilicity of the oxo ligands in 2 and 3 toward Me3SiI is explored.
创建时间：
2016-02-23
