Anorganisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany.
Angew Chem Int Ed Engl. 2018 Feb 5;57(6):1717-1720. doi: 10.1002/anie.201712155. Epub 2018 Jan 12.
No neutral silicon Lewis super acids are known to date. We report on the synthesis of bis(perchlorocatecholato)silane and verify its Lewis super acidity by computation (DLPNO-CCSD(T)) and experiment (fluoride abstraction from SbF ). The exceptional affinity towards donors is further demonstrated by, for example, the characterization of an unprecedented SiO F dianion and applied in the first hydrodefluorination reaction catalyzed by a neutral silicon Lewis acid. Given the strength and convenient access to this new Lewis acid, versatile applications might be foreseen.
目前还没有中性硅路易斯超酸。我们报告了双（过氯邻苯二酚）硅烷的合成，并通过计算（DLPNO-CCSD(T)）和实验（从 SbF 中夺取氟离子）验证了其路易斯超酸性。这种对给体的特殊亲和力进一步通过例如对一个前所未有的 SiO F 二阴离子的特征来证明，并应用于首例由中性硅路易斯酸催化的氢氟去氟化反应。鉴于这种新的路易斯酸的强度和方便获得，预计可能会有广泛的应用。
