Bis(perchlorocatecholato)silane - a neutral silicon Lewis super acid

• Verfasst von: Maskey, Rezisha [VerfasserIn]
• Verfasst von: Schädler, Marcel [VerfasserIn]
• Verfasst von: Legler, Claudia [VerfasserIn]
• Verfasst von: Greb, Lutz [VerfasserIn]
• Titel: Bis(perchlorocatecholato)silane - a neutral silicon Lewis super acid
• Verf.angabe: Rezisha Maskey, Marcel Schädler, Claudia Legler, and Lutz Greb
• E-Jahr: 2018
• Jahr: [February 5, 2018]
• Jahr des Originals: 2017
• Umfang: 4 S.
• Illustrationen: Illustrationen
• Fussnoten: First published: 14 December 2017 ; Gesehen am 15.10.2019
• Titel Quelle: Enthalten in: Angewandte Chemie / International edition
• Ort Quelle: Weinheim : Wiley-VCH, 1962
• Jahr Quelle: 2018
• Band/Heft Quelle: 57(2018), 6, Seite 1717-1720
• ISSN Quelle: 1521-3773
• DOI: doi:10.1002/anie.201712155
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: catechol
• Sach-SW: hydrodefluorination
• Sach-SW: Lewis super acids
• Sach-SW: main-group elements
• Sach-SW: silanes
• K10plus-PPN: 1678861928

Abstract

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 SbF6−). The exceptional affinity towards donors is further demonstrated by, for example, the characterization of an unprecedented SiO4F2 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.