Si-C bond cleavage in the reaction of gallium chloride with lithium bis(trimethylsilyl)amide and thermolysis of base adducts of dichloro(trimethylsilyl)amido gallium compounds

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Abstract

The known cyclic dimer, (Me3SiNSiMe2)2 (1), was isolated in the reaction of GaCl3 with one equivalent of Li[N(SiMe3)2] at room temperature as the result of cleavage of a Si-C bond from the N(SiMe3)2 anion. Although the gallium product was not isolated from the GaCl3 reaction, pyrolysis of the new base-stabilized dichloro(silyl)amido gallium compounds, Cl2Ga[N(SiMe3)2](quin) (2) (quin = quinuclidine), Cl2Ga[N(SiMe3)2](NMe3) (3), Cl2Ga[N(SiMe3)(tBu)](quin) (4) and was monomeric with the gallium atom adopting a distorted tetrahedral geometry. Improved structural data for 1 are also reported.

Original languageEnglish (US)
Pages (from-to)268-275
Number of pages8
JournalJournal of Organometalic Chemistry
Volume649
Issue number2
DOIs
StatePublished - Apr 22 2002

Keywords

  • Amidogallium compounds
  • Chlorogallium compounds
  • Si-C bond cleavage
  • X-ray structures

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