SYnthesis and Reactions of KGa(CH2SiMe3)2H2 and an attempted preparation of Ga(CH2SiMe3)2H. the search for a reductive elimination reaction

Article abstract of DOI:10.1021/om00080a004

The new compound KGa(CH₂SiMe₃)₂H₂ has been prepared from Ga(CH₂SiMe₃)₂Br and excess KH and fully characterized by analysis and ¹H NMR and IR spectral data. The pure compound is thermally stable below 200°C. Reaction of KGa(CH₂SiMe₃)₂H₂ with Ga(CH₂SiMe₃)₂Br in benzene solution leads to the formation of Ga(CH₂SiMe₃)₂H, which readily decomposes at room temperature to gallium metal, H₂, and Ga(CH₂SiMe₃)₃. The experimental data suggest that Ga(CH₂SiMe₃)₂H decomposes by an exchange process to form Ga(CH₂SiMe₃)₃ and unstable GaH₃. Reductive elimination does not appear to be an observed pathway to low oxidation state gallium compounds.