Projets par an
Résumé
A highly bent triarylborane, 9-boratriptycene, was generated in solution by selective protodeboronation of the corresponding tetra-aryl boron ate complex with the strong Brønsted acid HNTf2. The iptycene core confers enhanced Lewis acidity to 9-boratriptycene, making it unique in terms of structure and reactivity. We studied the stereoelectronic properties of 9-boratriptycene by quantifying its association with small N- and O-centered Lewis bases, as well as with sterically hindered phosphines. The resultant Lewis adducts exhibited unique structural, spectroscopic, and photophysical properties. Beyond the high pyramidalization of the 9-boratriptycene scaffold and its low reorganization energy upon Lewis base coordination, quantum chemical calculations revealed that the absence of π donation from the triptycene aryl rings to the boron vacant pz orbital is one of the main reasons for its high Lewis acidity.
langue originale | Anglais |
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Pages (de - à) | 12402-12406 |
Nombre de pages | 5 |
journal | Angewandte Chemie. International edition |
Volume | 59 |
Numéro de publication | 30 |
Les DOIs | |
Etat de la publication | Publié - 20 juil. 2020 |
Empreinte digitale
Examiner les sujets de recherche de « Controlled Generation of 9-Boratriptycene by Lewis Adduct Dissociation: Accessing a Non-Planar Triarylborane ». Ensemble, ils forment une empreinte digitale unique.Projets
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CÉCI – Consortium des Équipements de Calcul Intensif
CHAMPAGNE, B. (Responsable du Projet), Lazzaroni, R. (Responsable du Projet), Geuzaine , C. (Co-investigateur), Chatelain, P. (Co-investigateur) & Knaepen, B. (Co-investigateur)
1/01/18 → 31/12/22
Projet: Recherche
Équipement
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Physico-chimie et caractérisation (PC2)
Wouters, J. (!!Manager), Aprile, C. (!!Manager) & Fusaro, L. (!!Manager)
Plateforme technologique Caracterisation physico-chimiquesEquipement/installations: Plateforme technolgique
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Plateforme Technologique Calcul Intensif
Champagne, B. (!!Manager)
Plateforme technologique Calcul intensifEquipement/installations: Plateforme technolgique
Thèses de l'étudiant
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Synthesis of new lewis acids: from semi-cyclic triarylboranes to 9-boratriptycene
OSI, A. (Auteur), Berionni, G. (Promoteur), 1 févr. 2019Student thesis: Master types › Master en sciences chimique à finalité approfondie
Fichier -
Synthesis of sterically hindered phosphatriptycenes and computational investigation of their properties in the context of frustrated lewis pair chemistry
Mahaut, D. (Auteur), Berionni, G. (Promoteur) & Champagne, B. (Copromoteur), 1 févr. 2019Student thesis: Master types › Master en sciences chimique à finalité approfondie
Fichier