A Highly Sterically Encumbered Boron Lewis Acid Enabled by a Organotellurium-based Ligand
© 2024 Wiley‐VCH GmbH..
Lewis acidic boron compounds are ubiquitous in chemistry due to their numerous applications, yet tuning and optimizing their properties towards different purposes is still a challenging field of research. In this work, the boron Lewis acid B[OTeF3(C6F5)2]3 was synthesized by reaction of the teflate derivative HOTeF3(C6F5)2 with BCl3 or BCl3·SMe2. This new compound presents a remarkably high thermal stability up to 300 °C, as well as one of the most sterically encumbered boron centres known in the literature. Theoretical and experimental methods revealed that B[OTeF3(C6F5)2]3 exhibits a comparable Lewis acidity to that of the well-known B(C6F5)3 and around 85% of the Lewis acidity of the related B(OTeF5)3. The affinity of B[OTeF3(C6F5)2]3 towards pyridine was accessed by Isothermal Titration Calorimetry (ITC) and compared to that of B(OTeF5)3 and B(C6F5)3. The ligand-transfer reactivity of this new boron compound towards different fluorides was demonstrated by the formation of an anionic Au(III) complex and a hypervalent iodine(III) species.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - year:2024 |
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| Enthalten in: |
Chemistry (Weinheim an der Bergstrasse, Germany) - (2024) vom: 16. Apr., Seite e202401231 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Wegener, Daniel [VerfasserIn] |
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| Links: |
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| Themen: |
Boron |
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| Anmerkungen: |
Date Revised 16.04.2024 published: Print-Electronic Citation Status Publisher |
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| doi: |
10.1002/chem.202401231 |
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| PPN (Katalog-ID): |
NLM371141737 |
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| 245 | 1 | 2 | |a A Highly Sterically Encumbered Boron Lewis Acid Enabled by a Organotellurium-based Ligand |
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| 520 | |a Lewis acidic boron compounds are ubiquitous in chemistry due to their numerous applications, yet tuning and optimizing their properties towards different purposes is still a challenging field of research. In this work, the boron Lewis acid B[OTeF3(C6F5)2]3 was synthesized by reaction of the teflate derivative HOTeF3(C6F5)2 with BCl3 or BCl3·SMe2. This new compound presents a remarkably high thermal stability up to 300 °C, as well as one of the most sterically encumbered boron centres known in the literature. Theoretical and experimental methods revealed that B[OTeF3(C6F5)2]3 exhibits a comparable Lewis acidity to that of the well-known B(C6F5)3 and around 85% of the Lewis acidity of the related B(OTeF5)3. The affinity of B[OTeF3(C6F5)2]3 towards pyridine was accessed by Isothermal Titration Calorimetry (ITC) and compared to that of B(OTeF5)3 and B(C6F5)3. The ligand-transfer reactivity of this new boron compound towards different fluorides was demonstrated by the formation of an anionic Au(III) complex and a hypervalent iodine(III) species | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Lewis acid | |
| 650 | 4 | |a Organotellurium | |
| 650 | 4 | |a boron | |
| 650 | 4 | |a isothermal titration calorimetry | |
| 650 | 4 | |a superbulky | |
| 700 | 1 | |a Pérez-Bitrián, Alberto |e verfasserin |4 aut | |
| 700 | 1 | |a Limberg, Niklas |e verfasserin |4 aut | |
| 700 | 1 | |a Wiesner, Anja |e verfasserin |4 aut | |
| 700 | 1 | |a Hoffmann, Kurt F |e verfasserin |4 aut | |
| 700 | 1 | |a Hasenstab-Riedel, Sebastian |e verfasserin |4 aut | |
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