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Two Faces of the Bi-O Bond: Photochemically and Thermally Induced Dehydrocoupling for Si-O Bond Formation

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2022-03-14

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Philipps-Universität Marburg
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Abstract

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 diorgano(bismuth)alcoholate [Bi((C6H4CH2)2S)OPh] (1-OPh) has been synthesized and fully characterized. Stoichiometric reactions, UV/Vis spectroscopy, and (TD-)DFT calculations suggest its susceptibility to homolytic and heterolytic Bi-O bond cleavage under given reaction conditions. Using the dehydrocoupling of silanes with either TEMPO or phenol as model reactions, the catalytic competency of 1-OPh has been investigated (TEMPO =(tetramethyl-piperidin-1-yl)-oxyl). Different reaction pathways can deliberately be addressed by applying photochemical or thermal reaction conditions and by choosing radical or closed-shell substrates (TEMPO vs. phenol). Applied analytical techniques include NMR, UV/Vis, and EPR spectroscopy, mass spectrometry, single-crystal X-ray diffraction analysis, and (TD)-DFT calculations.

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Dates
Created: 2022Issued: 2022-03-14Updated: 2022-07-21
Relations
Is part of: es/2024/0401
Faculty
Fachbereich Chemie
Language
eng
Data types
Article
DDC-Numbers
540
License
https://creativecommons.org/licenses/by-nc-nd/4.0/
URI
https://open.uni-marburg.de/handle/10.17192/es.2022.0015
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Ramler, Jacqueline; Schwarzmann, Johannes; Stoy, Andreas; Lichtenberg, Crispin (0000-0002-0176-0939): Two Faces of the Bi-O Bond: Photochemically and Thermally Induced Dehydrocoupling for Si-O Bond Formation. In: , Jg. (2022-03-14), . DOI: https://doi.org/10.17192/es2022.0015.

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