Formation of the Imide [Ta(NMe2)3(μ-NSiMe3)]2 through an Unprecedented α-SiMe3 Abstraction by an Amide Ligand
收藏Figshare2016-02-22 更新2026-04-29 收录
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https://figshare.com/articles/dataset/Formation_of_the_Imide_Ta_NMe_sub_2_sub_sub_3_sub_NSiMe_sub_3_sub_sub_2_sub_through_an_Unprecedented_SiMe_sub_3_sub_Abstraction_by_an_Amide_Ligand/2567257
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Ta(NMe2)4[N(SiMe3)2] (1) undergoes the elimination of Me3Si-NMe2 (2), converting the −N(SiMe3)2 ligand to the NSiMe3 ligand, to give the imide “Ta(NMe2)3(NSiMe3)” (3) observed as its dimer 4. CyNCNCy captures 3 to yield guanidinates Ta(NMe2)3–n(NSiMe3)[CyNC(NMe2)NCy]n [n = 1 (5), 2 (6)]. The kinetic study of α-SiMe3 abstraction in 1 gives ΔH⧧ = 21.3(1.0) kcal/mol and ΔS⧧ = −17(2) eu.
创建时间：
2016-02-22
