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Bismuth Cations: Fluoride Ion Abstraction, Isocyanide Coordination, and Impact of Steric Bulk on Lewis Acidity

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2023-07-10

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Philipps-Universität Marburg
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This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively
The molecular compound [BiDipp2(SbF6)], containing the bulky, donor-free bismuth cation [BiDipp2]+ has been synthesized and fully characterized (Dipp=2,6-iPr2-C6H3). Using its methyl analog [BiMe2(SbF6)] as a second reference point, the impact of steric bulk on bismuth-based Lewis acidity was investigated in a combined experimental (Gutmann-Beckett and modified Gutmann-Beckett methods) and theoretical approach (DFT calculations). Reactivity studies of the bismuth cations towards [PF6]− and neutral Lewis bases such as isocyanides C≡NR’ revealed facile fluoride ion abstraction and straightforward Lewis pair formation, respectively. The first examples of compounds featuring bismuth-bound isocyanides have been isolated and fully characterized.

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Created: 2023Issued: 2023-07-10Updated: 2023-07-11
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Is part of: es/2024/0401
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Fachbereich Chemie
Language
eng
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Article
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540
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https://creativecommons.org/licenses/by-nc-nd/4.0/
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https://open.uni-marburg.de/handle/10.17192/es.2023.0071
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Dunaj, Tobias; Schwarzmann, Johannes; Ramler, Jacqueline; Stoy, Andreas; Reith, Sascha; Nitzsche, Joel; Völlinger, Lena; Hänisch, Carsten von; Lichtenberg, Crispin (0000-0002-0176-0939): Bismuth Cations: Fluoride Ion Abstraction, Isocyanide Coordination, and Impact of Steric Bulk on Lewis Acidity. In: , Jg. (2023-07-10), . DOI: https://doi.org/10.1002/chem.202204012.

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Except where otherwised noted, this item's license is described as Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 - CC BY NC ND