Metal–halide complexes of main-group metals Al, Ga, Zn, and Cd supported by the new sterically and electronically versatile monoanionic ligand, tBuN(H)SiMe2N(CH2CH2PiPr2)2, H[N2P2], are described. The metal–alkyl complex [N2P2]AlMe2 (4) was prepared by two metathesis reactions of [N2P2]AlCl2 (1) and 2MeLi, as well as [N2P2]Li and Me2AlCl. All compounds were characterized by standard analytical techniques; in addition, [N2P2]AlCl2 (1), [N2P2]GaCl2 (3), and [N2P2]CdCl2 (6) were characterized by single-crystal X-ray crystallography. The potentially tetradentate ligand enforces a tetrahedral geometry at each metal by adopting two coordination modes: κ2-NP (Al, Ga) and κ3-NP2 (Cd).
本文描述了主族
金属 Al、Ga、Zn 和 Cd 的
金属卤化物络合物,这些络合物由新的立体和电子多功能单阴离子
配体 tBuN(H)SiMe2N(CH2CH2PiPr2)2, H[N2P2] 支持。
金属-烷基复合物 [N2P2]AlMe2 (4) 是通过 [N2P2]AlCl2 (1) 和 2MeLi 以及 [N2P2]Li 和 Me2AlCl 的两个复分解反应制备的。所有化合物都通过标准分析技术进行了表征;此外,[N2P2]AlCl2 (1)、[N2P2]GaCl2 (3) 和 [N2P2]CdCl2 (6) 还通过单晶 X 射线晶体学进行了表征。潜在的四价
配体通过采用两种配位模式:κ2-NP(Al、Ga)和κ3-NP2(Cd),在每种
金属上都形成了四面体几何形状。