Calix[4]pyrrole aluminate

• Verfasst von: Ebner, Fabian [VerfasserIn]
• Verfasst von: Wadepohl, Hubert [VerfasserIn]
• Verfasst von: Greb, Lutz [VerfasserIn]
• Titel: Calix[4]pyrrole aluminate
• Titelzusatz: a planar tetracoordinate aluminum(III) anion and its unusual lewis acidity
• Verf.angabe: Fabian Ebner, Hubert Wadepohl, and Lutz Greb
• E-Jahr: 2019
• Jahr: October 30, 2019
• Umfang: 4 S.
• Fussnoten: Gesehen am 08.01.2020
• Titel Quelle: Enthalten in: American Chemical SocietyJournal of the American Chemical Society
• Ort Quelle: Washington, DC : American Chemical Society, 1879
• Jahr Quelle: 2019
• Band/Heft Quelle: 141(2019), 45, Seite 18009-18012
• ISSN Quelle: 1520-5126
• DOI: doi:10.1021/jacs.9b10628
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1686654359

Abstract

Tetracoordinate aluminum(III) anions are generally tetrahedral and non-Lewis acidic. Herein, we describe the first planar tetracoordinate aluminum anion. The anion is isolated in its free form, representing a new “anti-van’t Hoff/Le Bel” case. Despite its negative charge, it remains Lewis acidic and permits the formation of various unique adducts, e.g., a dianionic p-block metal hydride. Turning an inert spectator anion into a Lewis acid by planarization verifies theoretical predictions made 40 years ago, ultimately connects “anti-van’t Hoff/Le Bel” structure with reactivity, and pushes