Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland.
Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland.
Inorg Chem. 2020 Oct 5;59(19):13807-13811. doi: 10.1021/acs.inorgchem.0c01962. Epub 2020 Jul 31.
While aluminum alkyls are often considered to be exemplary compounds of main-group organometallics and an in-depth understanding of their multifaceted chemistry is continually vital, the controlled oxygenation of organoaluminum complexes still remains a largely undeveloped area. In the course of our systematic studies on the relationship between the Lewis acidity of metal centers and noncovalent interactions in the secondary coordination sphere, we report the oxygenation of dialkylaluminum complexes incorporating a pyrrole-ester ligand, as purposefully selected dormant Lewis acidic octet-compliant model compounds, and the isolation and characterization of a new, dimeric aluminum -butylperoxide and an unique example of an aluminum oxoethoxide cluster. Our studies provide a more in-depth look at the diversity and complexity of the oxygenation chemistry of aluminum alkyls.
虽然铝烷基通常被认为是主族有机金属的典范化合物，并且对其多方面化学性质的深入了解仍然至关重要，但有机铝配合物的可控氧化仍然是一个很大程度上未开发的领域。在我们对金属中心的路易斯酸度与次级配位球中非共价相互作用之间关系的系统研究过程中，我们报告了包含吡咯酯配体的二烷基铝配合物的氧化，这些配合物被有意选择为休眠的路易斯酸性八电子符合模型化合物，并且分离和表征了一种新的二聚铝-丁基过氧化物和一个独特的铝氧乙氧基簇的例子。我们的研究更深入地了解了铝烷基的氧化化学的多样性和复杂性。
