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Synthesis, Characterization, and Structural Analysis of AM[Al(NONDipp)(H)(SiH2Ph)] (AM = Li, Na, K, Rb, Cs) Compounds, Made Via Oxidative Addition of Phenylsilane to Alkali Metal Aluminyls
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2022-11-23 , DOI: 10.1021/acs.inorgchem.2c03010
Gerd M Ballmann 1 , Matthew J Evans 2 , Thomas X Gentner 1 , Alan R Kennedy 1 , J Robin Fulton 2 , Martyn P Coles 2 , Robert E Mulvey 1
Affiliation  

We report the oxidative addition of phenylsilane to the complete series of alkali metal (AM) aluminyls [AM{Al(NONDipp)}]2 (AM = Li, Na, K, Rb, and Cs). Crystalline products (1-AM) have been isolated as ether or THF adducts, [AM(L)n][Al(NONDipp)(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(NONDipp)(H)(SiH2Ph)}2)]+ [Rb{Al(NONDipp)(H)(SiH2Ph)}2], was isolated during an attempted recrystallization of Rb[Al(NONDipp)(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:

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 )}] 2AM = 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(NONDipp )(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。
更新日期:2022-11-23
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