The challenge for atomic-level control of multi-aluminum structures for the development of new efficient materials

铝因其极端的多功能性和独特的性能范围而引起了相当大的关注，包括酸度，硬度和导电性。本研究以Keggin型和dawson型空腔多金属氧酸盐为无机配体，合成了多种具有单铝位点和多铝位点的铝化合物。铝配位多氧化钨酸盐与分子氧催化醇在水中的氧化反应活性受铝位周围结构的显著影响。此外，一个阳离子有机硅碎片被成功地支撑在多金属氧酸盐构建的铝位点上；这是利用铝位点作为原子级支撑的多氧阴离子支撑的有机金属化合物的第一个例子。

Aluminum has attracted considerable attention because of their extreme versatility and unique range of properties, including acidity, hardness, and electroconductivity. In this study, various aluminum compounds possessing mono- and multi-aluminum sites were synthesized by using Keggin and Dawson-type lacunary polyoxometalates as inorganic ligands. For the oxidation of alcohols in water catalyzed by aluminum-coordinated polyoxotungstates with molecular oxygen, the activities were significantly affected by the structures around aluminum sites. Furthermore, a cationic organozirocnium fragment was successfully supported onto the aluminum site constructed in polyoxometalate; this is the first example of the polyoxoanion-supported organometallic compound by utilizing the aluminum site as an atomic-level support.