TY  - JOUR
A1  - Ramler, Jacqueline
A1  - Schwarzmann, Johannes
A1  - Stoy, Andreas
A1  - Lichtenberg, Crispin
T1  - Two Faces of the Bi−O Bond: Photochemically and Thermally Induced Dehydrocoupling for Si−O Bond Formation
T2  - European Journal of Inorganic Chemistry
N2  - The diorgano(bismuth)alcoholate [Bi((C\(_{6}\)H\(_{4}\)CH\(_{2}\))\(_{2}\)S)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.
KW  - Bismuth
KW  - dehydrocoupling
KW  - radical reactions
KW  - chalcogens
KW  - catalysis
Y1  - 2022
UR  - https://opus.bibliothek.uni-wuerzburg.de/frontdoor/index/index/docId/25742
UR  - https://nbn-resolving.org/urn:nbn:de:bvb:20-opus-257428
VL  - 2022
IS  - 7
ER  -