The metal-mediated coupling of the diselenaundecaborate anion [Se2B9H10]-

0566964 - ÚACH 2024 RIV NL eng J - Journal Article
Bould, Jonathan - Tok, Oleg L. - Clegg, W. - Londesborough, Michael Geoffrey Stephen - Litecká, Miroslava - Ehn, Marcel
The metal-mediated coupling of the diselenaundecaborate anion [Se2B9H10]-.
Inorganica chimica acta. Roč. 547, MAR (2023), č. článku 121341. ISSN 0020-1693. E-ISSN 1873-3255
R&D Projects: GA MŠMT(CZ) LM2018124
Institutional support: RVO:61388980
Keywords : Boranes * Chalcogenaboranes * Clusters * Diselenaundecaborate * Fluxional * Fusion * Heteroborane
OECD category: Inorganic and nuclear chemistry
Impact factor: 2.8, year: 2022
Method of publishing: Limited access
https://doi.org/10.1016/j.ica.2022.121341

The diselenaundecaborate anion, [Se2B9H10]− (1), is isolated in 49 % yield from the one-pot reaction of nido-B10H14, Proton Sponge and selenium in thf. In solution, 1 exhibits a fluxional interchange between symmetry-equivalent positions of its two selenium atoms and open-face ‘bridging’ hydrogen atom that cannot be frozen out on the NMR timescale. This is however resolved by solid-state boron-11 NMR spectroscopy, which shows the spectrum expected from a DFT/GIAO calculation. The treatment of two equivalents of 1 with HgCl2 in dichloromethane affords the conjoined binary cluster anion [(Se2B9H10)(SeB9H11)]− (2), in which the ‘bridging’ selenium atom in 1 links to an {arachno-SeB9H11} moiety. This metal-mediated linking of selenaborane clusters potentially opens a gateway to new macropolyhedral heteroborane assemblies.
Permanent Link: https://hdl.handle.net/11104/0338225


Research data: CCDC, CCDC