We report the oxidative addition of phenylsilane to the complete series of alkali metal (AM) aluminyls [AM{Al(NON^Dipp)}]₂ (AM = Li, Na, K, Rb, and Cs). Crystalline products (1-AM) have been isolated as ether or THF adducts, [AM(L)_n][Al(NON^Dipp)(H)(SiH₂Ph)] (AM = Li, Na, K, Rb, L = Et₂O, n = 1; AM = Cs, L = THF, n = 2). Further to this series, the novel rubidium rubidiate, [{Rb(THF)₄}₂(Rb{Al(NON^Dipp)(H)(SiH₂Ph)}₂)]⁺ [Rb{Al(NON^Dipp)(H)(SiH₂Ph)}₂]⁻, was isolated during an attempted recrystallization of Rb[Al(NON^Dipp)(H)(SiH₂Ph)] from a hexane/THF mixture. Structural and spectroscopic characterizations of the series 1-AM confirm the presence of μ-hydrides that bridge the aluminum and alkali metals (AM), with multiple stabilizing AM···π(arene) interactions to either the Dipp- or Ph-substituents. These products form a complete series of soluble, alkali metal (hydrido) aluminates that present a platform for further reactivity studies.

中文翻译：

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AM[Al(NONDipp)(H)(SiH2Ph)]（AM = Li、Na、K、Rb、Cs）化合物的合成、表征和结构分析，通过苯基硅烷对碱金属铝基的氧化加成制备

我们报告了苯基硅烷氧化加成到完整系列的碱金属 ( AM ) 铝 [ AM {Al(NON ^Dipp )}] ₂（AM = Li、Na、K、Rb 和 Cs）。结晶产物 ( 1-AM ) 已分离为乙醚或 THF 加合物，[ AM (L) _n ][Al(NON ^Dipp )(H)(SiH ₂ Ph)] ( AM = Li, Na, K, Rb, L = Et ₂ O，n = 1；AM = Cs，L = THF，n = 2)。在这个系列的基础上，新型铷酸铷 [{Rb(THF) ₄ } ₂ (Rb{Al(NON^Dipp )(H)(SiH ₂ Ph)} ₂ )] ⁺ [Rb{Al(NON ^Dipp )(H)(SiH ₂ Ph)} ₂ ] ⁻，在 Rb[Al(NON ^Dipp )的重结晶尝试中分离出来(H)(SiH ₂ Ph)] 来自己烷/THF 混合物。1-AM系列的结构和光谱表征证实存在桥接铝和碱金属 ( AM )的μ-氢化物，具有多重稳定AM···π(arene) 与 Dipp- 或 Ph- 取代基的相互作用。这些产品构成了一个完整系列的可溶性碱金属（氢化物）铝酸盐，为进一步的反应性研究提供了平台。