Hauser Adrian, Münzfeld Luca, Roesky Peter W
Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstraße 15, Karlsruhe D-76131, Germany.
Chem Commun (Camb). 2021 Jun 7;57(45):5503-5506. doi: 10.1039/d1cc01475g. Epub 2021 May 12.
Herein, we present a novel approach towards organometallic group 13/15-compounds, i.e. the reaction of nanoparticular arsenic and antimony with low-valent aluminium species. The reaction of the two-electron reducing agent [AlCp*] (Cp* = CMe) with arsenic nanoparticles gave rise to a mixture of two unprecedented deca- and dodecanuclear Al-As clusters. In contrast, the analogous transformation with nanoparticular antimony yielded the already known Al-Sb compound [(AlCp*)Sb]. Additionally, two different dialanes [AlCp*X] (X = Br, I) were employed as one-electron reducing agents, forming calix like coordination compounds upon reaction with nano arsenic. The isolated species significantly enlarge the accessible structural variety of molecular group 13/15 compounds, highlighting the exceptional utility and reactivity of nanoscale group 15 precursors.
在此，我们展示了一种制备13/15族有机金属化合物的新方法，即纳米级砷和锑与低价铝物种的反应。双电子还原剂[AlCp*]（Cp* = CMe）与砷纳米颗粒反应，生成了两种前所未有的十核和十二核Al-As簇的混合物。相比之下，纳米级锑的类似转化生成了已知的Al-Sb化合物[(AlCp*)Sb]。此外，两种不同的二铝烷[AlCp*X]（X = Br、I）被用作单电子还原剂，与纳米砷反应形成杯状配位化合物。分离出的物种显著扩大了可获得的13/15族分子化合物的结构种类，突出了纳米级15族前体的特殊效用和反应活性。
