The Lewis acid-base adduct Me2Si(NMe2)2-GaCl3 was isolated when GaCl3 was allowed to react with Me^KNMe^. The reaction of Me2Si(NEt2)2 with GaCl3 proceeded by dehalosilylation to give [Cl2Ga(NEt2)2SiMe2][(Cl3Ga)2NEt2] and Et2NSi(Cl)Me2. The N-alkylated hexamethylcyclotrisilazane (RNSiMe2)3 and RNH2-GaCl3 were obtained from the reaction of GaCl3 with [R(H)N]2SiMe2, where R = Et and -Bu. The molecular structures of Me2Si (NMe2)2-GaCl3 and [Cl2Ga(NEt2)2SiMe2]-[(CI3Ga)2NEt2] were confirmed by X-ray crystallography. Crystal data for Me2Si(NMe2)2-GaCl3: monoclinic space group C2/c (No.
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