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Synthesis of gold(I)-trifluoromethyl complexes and their role in generating spectroscopic evidence for a gold(I)-difluorocarbene species

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Broeck_2021_CEJ_synthesis_gold_AAM.pdf (1.362Mb)
Date
14/05/2021
Author
Vanden Broeck, Sofie M. P.
Nelson, David J.
Collado, Alba
Falivene, Laura
Cavallo, Luigi
Cordes, David B.
Slawin, Alexandra M. Z.
Van Hecke, Kristof
Nahra, Fady
Cazin, Catherine S. J.
Nolan, Steven Patrick
Keywords
Difluorocarbene
Trifluoromethyl
N-heterocyclic carbene
Gold(I)
Fluoride abstraction
QD Chemistry
DAS
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Abstract
Readily-prepared and bench-stable [Au(CF3)(NHC)] compounds were synthesized using new methodologies, starting from [Au(OH)(NHC)], [Au(Cl)(NHC)] or [Au(L)(NHC)]HF2 precursors (NHC = N-heterocyclic carbene). The mechanism of formation of these species was investigated. Consequently, a new and straightforward strategy for the mild and selective cleavage of a single carbon-fluorine bond from [Au(CF3)(NHC)] complexes was attempted and found to be reversible in the presence of an additional nucleophilic fluoride source. This straightforward technique has led to the unprecedented spectroscopic observation of a gold(I)-NHC difluorocarbene species.
Citation
Vanden Broeck , S M P , Nelson , D J , Collado , A , Falivene , L , Cavallo , L , Cordes , D B , Slawin , A M Z , Van Hecke , K , Nahra , F , Cazin , C S J & Nolan , S P 2021 , ' Synthesis of gold(I)-trifluoromethyl complexes and their role in generating spectroscopic evidence for a gold(I)-difluorocarbene species ' , Chemistry - A European Journal , vol. Early View . https://doi.org/10.1002/chem.202100195
Publication
Chemistry - A European Journal
Status
Peer reviewed
DOI
https://doi.org/10.1002/chem.202100195
ISSN
0947-6539
Type
Journal article
Rights
Copyright © 2021 Wiley‐VCH GmbH. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the author created accepted manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1002/chem.202100195
Description
We thank the Ghent University (IoF), the Special Research Fund (BOF) starting (SPN, CSJC) and advanced (SPN, KVH) grants and Research Foundation Flanders (FWO) (fellowship to SVB and grant to CSJC and KVH) for funding.
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/25374

Items in the St Andrews Research Repository are protected by copyright, with all rights reserved, unless otherwise indicated.

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