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• W2036724925 endingPage "6039" @default.
• W2036724925 startingPage "6033" @default.
• W2036724925 abstract "Metallacyclic complex [(Me2N)3Ta(η(2)-CH2SiMe2NSiMe3)] (3) undergoes C-H activation in its reaction with H3SiPh to afford a Ta/μ-alkylidene/hydride complex, [(Me2N)2{(Me3Si)2N}Ta(μ-H)2(μ-C-η(2)-CHSiMe2NSiMe3)Ta(NMe2)2] (4). Deuterium-labeling studies with [D3]SiPh show H-D exchange between the Ta-D-Ta unit and all methyl groups in [(Me2N)2{(Me3Si)2N}Ta(μ-D)2(μ-C-η(2)-CHSiMe2NSiMe3)Ta(NMe2)2] ([D2]-4) to give the partially deuterated complex [Dn]-4. In addition, 4 undergoes β-H abstraction between a hydride and an NMe2 ligand and forms a new complex [(Me2N){(Me3 Si)2N}Ta(μ-H)(μ-N-η(2)-C,N-CH2NMe)(μ-C-η(2)-C,N-CHSiMe2NSiMe3)Ta(NMe2)2] (5) with a cyclometalated, η(2)-imine ligand. These results indicate that there are two simultaneous processes in [Dn]-4:1) H-D exchange through σ-bond metathesis, and 2) H-D elimination through β-H abstraction (to give [Dn]-5). Both 4 and 5 have been characterized by single-crystal X-ray diffraction studies." @default.
• W2036724925 created "2016-06-24" @default.
• W2036724925 creator A5003995610 @default.
• W2036724925 creator A5011391267 @default.
• W2036724925 creator A5012278873 @default.
• W2036724925 creator A5021689873 @default.
• W2036724925 creator A5032116592 @default.
• W2036724925 creator A5032910255 @default.
• W2036724925 creator A5080404717 @default.
• W2036724925 creator A5086886673 @default.
• W2036724925 date "2014-03-28" @default.
• W2036724925 modified "2023-10-16" @default.
• W2036724925 title "CH Bond Activation during and after the Reactions of a Metallacyclic Amide with Silanes: Formation of a μ-Alkylidene Hydride Complex, Its H-D Exchange, and β-H Abstraction by a Hydride Ligand" @default.
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