Synthesis and Characterization of Hypercoordinated Silicon Anions: Catching Intermediates of Lewis Base Catalysis
Abstract: Anionic hypercoordinated silicates with weak donors were proposed as key intermediates in numerous silicon‐based reactions. However, their short‐lived nature rendered even spectroscopic observations highly challenging. Here, we characterize hypercoordinated silicon anions, including the first bromido‐, iodido‐, formato‐, acetato‐, triflato‐ and sulfato‐silicates. This is enabled by a new, donor‐free polymeric form of Lewis superacidic bis (perchlorocatecholato) silane 1. Spectroscopic, structural, and computational insights allow a reassessment of Gutmann's empirical rules for the role of silicon hypercoordination in synthesis and catalysis. The electronic perturbations of 1 exerted on the bound anions indicate pronounced substrate activation.
- Standort
-
Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
-
Online-Ressource
- Sprache
-
Englisch
- Erschienen in
-
Synthesis and Characterization of Hypercoordinated Silicon Anions: Catching Intermediates of Lewis Base Catalysis ; day:05 ; month:05 ; year:2022 ; extent:1
Angewandte Chemie ; (05.05.2022) (gesamt 1)
- Urheber
- DOI
-
10.1002/ange.202203947
- URN
-
urn:nbn:de:101:1-2022050615130269494692
- Rechteinformation
-
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
-
15.08.2025, 07:31 MESZ
Datenpartner
Dieses Objekt wird bereitgestellt von:
Deutsche Nationalbibliothek. Bei Fragen zum Objekt wenden Sie sich bitte an den Datenpartner.
Deutsche Nationalbibliothek. Bei Fragen zum Objekt wenden Sie sich bitte an den Datenpartner.
Beteiligte
Ähnliche Objekte (12)
Synthesis and Characterization of Hypercoordinated Silicon Anions: Catching Intermediates of Lewis Base Catalysis
The Intermediates in Lewis Acid Catalysis with Lanthanide Triflates
Weakly coordinating anions and lewis superacidity
Cryogenic ion vibrational spectroscopy of reactive ions : reaction intermediates and eletrophilic anions
Cyclobutanone Mimics of Intermediates in Metallo‐β‐Lactamase Catalysis
Reactivity of Frustrated Lewis Pair: Carbocation versus Radical Intermediates
NMR-investigations on intermediates and interactions in transition-metal catalysis
NHC Catalysis for Umpolung Pyridinium Alkylation via Deoxy‐Breslow Intermediates
NHC Catalysis for Umpolung Pyridinium Alkylation via Deoxy‐Breslow Intermediates
Lewis base catalyzed reactions with latent nucleophiles and phosphonium intermediates
Bidentate lewis acid catalysis for organic synthesis
Lewis Acid‐Driven Inverse Hydride Shuttle Catalysis
Synthesis and Characterization of Hypercoordinated Silicon Anions: Catching Intermediates of Lewis Base Catalysis
The Intermediates in Lewis Acid Catalysis with Lanthanide Triflates
Weakly coordinating anions and lewis superacidity
Cryogenic ion vibrational spectroscopy of reactive ions : reaction intermediates and eletrophilic anions
Cyclobutanone Mimics of Intermediates in Metallo‐β‐Lactamase Catalysis
Reactivity of Frustrated Lewis Pair: Carbocation versus Radical Intermediates
NMR-investigations on intermediates and interactions in transition-metal catalysis
NHC Catalysis for Umpolung Pyridinium Alkylation via Deoxy‐Breslow Intermediates
NHC Catalysis for Umpolung Pyridinium Alkylation via Deoxy‐Breslow Intermediates
Lewis base catalyzed reactions with latent nucleophiles and phosphonium intermediates
Bidentate lewis acid catalysis for organic synthesis
Lewis Acid‐Driven Inverse Hydride Shuttle Catalysis
Synthesis and Characterization of Hypercoordinated Silicon Anions: Catching Intermediates of Lewis Base Catalysis
The Intermediates in Lewis Acid Catalysis with Lanthanide Triflates
Weakly coordinating anions and lewis superacidity
Cryogenic ion vibrational spectroscopy of reactive ions : reaction intermediates and eletrophilic anions
Cyclobutanone Mimics of Intermediates in Metallo‐β‐Lactamase Catalysis
Reactivity of Frustrated Lewis Pair: Carbocation versus Radical Intermediates
NMR-investigations on intermediates and interactions in transition-metal catalysis
NHC Catalysis for Umpolung Pyridinium Alkylation via Deoxy‐Breslow Intermediates
NHC Catalysis for Umpolung Pyridinium Alkylation via Deoxy‐Breslow Intermediates
Lewis base catalyzed reactions with latent nucleophiles and phosphonium intermediates
Bidentate lewis acid catalysis for organic synthesis