Synthesis and characterization of gallium silylamido complexes.

The reaction between GaCl(3) and 1 equiv of HN(SiMe(2)Ph)(2) in CH(2)Cl(2) solution affords colorless crystals of [Cl(2)Ga[mu-N(H)SiMe(2)Ph]](2) (1). The related reaction between GaCl(3) and 1 equiv of LiN(SiMe(2)Ph)(2) in hexane solution results in the isolation of colorless crystals of [PhGa[N(SiMe(2)Ph)(2)](mu-Cl)](2) (2). In contrast, treatment of GaCl(3) with 1 equiv of N(SiMe(3))(3) in CH(2)Cl(2) solutions affords colorless crystals of [MeGaCl(2)](2) (4). Compounds 2 and 4 are the result of monochloride substitution and transfer of a phenyl and methyl ligand, respectively, from the silyl group of the amine to the Ga center. All the complexes have been characterized by X-ray crystallography.