Calix (4) pyrrolato Stibenium: Lewis Superacidity by Antimony (III)‐Antimony (V) Electromerism

Abstract: Lewis superacids enable the activation of highly inert substrates. However, the permanent presence of a Lewis superacidic center comes along with a constantly increased intolerance toward functional groups or ambient conditions. Herein, we describe a strategy to unleash Lewis superacidity by electromerism. Experimental and computational results indicate that coordinating a Lewis base to Δ‐calix[4]pyrrolato‐antimony (III) triggers a ligand redox‐noninnocent coupled transfer into antimony (V)‐state that exhibits Lewis superacidic features. Lewis acidity by electromerism establishes a concept of potential generality for powerful yet robust reagents and on‐site substrate activation approaches.

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: Calix (4) pyrrolato Stibenium: Lewis Superacidity by Antimony (III)‐Antimony (V) Electromerism ; day:25 ; month:08 ; year:2022 ; extent:1 ; Angewandte Chemie ; (25.08.2022) (gesamt 1)

Contributors, Places and Time

• Creator: Schorpp, Marcel ; Yadav, Ravi ; Roth, Daniel ; Greb, Lutz

Further information

• DOI: 10.1002/ange.202207963
• URN: urn:nbn:de:101:1-2022082916040341098115
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 15.08.2025, 7:37 AM CEST