The interaction of dimethyldiaminosilane ligands of general formula SiMe2(NR2)(NR′2)
(NR2, NR′2
= NiHPr, NHtBu, NC4H8, NHCH2CH2NMe2) with AlX3
(X = Cl, Me) has been investigated and the synthesis of novel aluminium derivatives is reported, namely AlMe3[SiMe2(NR2)(NR′2)], AlX2[SiMe2(NR)(NR′2)] and AlMe[SiMe2(NR)2], containing the silane ligand as neutral, monoanionic and dianionic species, respectively. Moreover, the solution molecular structures and dynamics have been elucidated via 1D/2D variable temperature NMR spectroscopy showing the influence of the N-substituents of the silane ligand and of the aluminium ancillary ligands.
研究了通式为 SiMe2(NR2)(NR′2)(NR2、NR′2 = NiHPr、NHtBu、NC4H8、NHCH2CH2NMe2)的二甲基二
氨基
硅烷配体与 AlX3(X = Cl、NR′2)]、AlX2[SiMe2(NR)(NR′2)]和 AlMe[SiMe2(NR)2],它们分别为中性、单阴离子和二阴离子
硅烷配体。此外,通过一维/二维变温核磁共振光谱阐明了溶液分子结构和动力学,显示了
硅烷配体和铝辅助
配体的 N 取代基的影响。