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  Synthesis and Structure of Mono-, Di-, and Trinuclear Fluorotriarylbismuthonium Cations

Kuziola, J., Magre, M., Nöthling, N., & Cornella, J. (2022). Synthesis and Structure of Mono-, Di-, and Trinuclear Fluorotriarylbismuthonium Cations. Organometallics. doi:10.1021/acs.organomet.2c00135.

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 Creators:
Kuziola, Jennifer1, Author              
Magre, Marc1, Author              
Nöthling, Nils2, Author              
Cornella, Josep1, Author              
Affiliations:
1Research Group Cornellà, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_2466693              
2Service Department Lehmann (EMR), Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445625              

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 Abstract: A series of cationic fluorotriarylbismuthonium salts bearing differently substituted aryl groups (Ar = 9,9-Me2-9H-xanthene, Ph, Mes, and 3,5-tBu-C6H3) have been synthesized and characterized. While the presence of simple phenyl substituents around the Bi center results in a polymeric structure with three Bi centers in the repeating monomer, substituents at the ortho- and meta-positions lead to cationic mono- and dinuclear fluorobismuthonium complexes, respectively. Preparation of all compounds is accomplished by fluoride abstraction from the parent triaryl Bi(V) difluorides using NaBArF (BArF– = B[C6H3-3,5-(CF3)2]4). Structural parameters were obtained via single crystal X-ray diffraction (XRD), and their behavior in solution was studied by NMR spectroscopy. Trinuclear and binuclear complexes are held together through one bridging fluoride (μ-F) between two Bi(V) centers. In contrast, the presence of Me groups in both ortho-positions of the aryl ring provides the adequate steric encumbrance to isolate a unique mononuclear nonstabilized fluorotriarylbismuthonium cation. This compound features a distorted tetrahedral geometry and is remarkably stable at room temperature both in solution (toluene, benzene and THF) and in the solid state.

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Language(s): eng - English
 Dates: 2022-03-162022-05-09
 Publication Status: Published online
 Pages: -
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 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1021/acs.organomet.2c00135
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Title: Organometallics
  Other : Organometallics
Source Genre: Journal
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Publ. Info: Washington, D.C. : American Chemical Society
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: - Identifier: ISSN: 0276-7333
CoNE: https://pure.mpg.de/cone/journals/resource/954925505259