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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Cyclometallation of a germylene ligand by concerted metalation-deprotonation of a methyl group
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Cyclometallation of a germylene ligand by concerted metalation-deprotonation of a methyl group

机译:通过甲基齐全的金属化 - 质子化 - 甲基芳基 - 甲基芳基

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摘要

The reaction of [CH{(CMe)(2,6-iPr(2)C(6)H(3)N)}(2)]GeCl with LiN(SiMe3)(2) was previously reported, which led to the formation of a hetero-fulvene type germylene, [CH{(CMe)(C?CH2)(2,6-iPr(2)C(6)H(3)N)}(2)]Ge through the deprotonation of the C-H bond from the methyl substituents. In this paper, we attempted the analogous reaction with (Dipp)NCMeCHCOMeGeCl using LiN(SiMe3)(2) which gave rise to a metathesis product, (Dipp)NCMeCHCOMeGeN(SiMe3)(2) (2). However, the reactions of 2 with [M2Cl2(-Cl)(2)((5)-Cp*)(2)] (M = Rh and Ir) resulted in cyclometallated Rh and Ir complexes through the activation of the C-H bond from the germylene ligand. The complexes were characterized by single crystal X-ray analysis, which authenticated the presence of Ge-Rh and Ge-Ir bonds. DFT studies have been performed to understand the mechanism.
机译:[CH {(CME)(2,6-IPR(2)C(6)H(3)H)}(2)] GECL与LIN(SIME3)(2)的反应是先报告的,这导致了 形成杂富富叶芳型常规,[Ch {(CME)(C'CH2)(2,6-IPR(2)C(6)H(3)H)}(2)] Ge通过去质子化 Ch键与甲基取代基。 在本文中,我们尝试使用LIN(SIME3)(2)对(2)进行类似反应,从而产生复分解产物,(DIPP)NCMECHCOMGEN(SIME3)(2)(2)。 然而,用[M2Cl 2(-Cl)(2)((5)-CP *)(2)](2)](M = RH和IR)的反应产生通过激活CH键的循环型RH和IR复合物 常熟配体。 通过单晶X射线分析表征复合物,该分析验证了Ge-Rh和Ge-IR键的存在。 已经进行了DFT研究以了解该机制。

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