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Lookup NU author(s): Professor William Clegg
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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.
Author(s): Bould J, Tok O, Clegg W, Londesborough MGS, Litecka M, Ehn M
Publication type: Article
Publication status: Published
Journal: Inorganica Chimica Acta
Year: 2023
Volume: 547
Print publication date: 01/03/2023
Online publication date: 10/12/2022
Acceptance date: 07/12/2022
Date deposited: 15/12/2022
ISSN (print): 0020-1693
ISSN (electronic): 1873-3255
Publisher: Elsevier BV
URL: https://doi.org/10.1016/j.ica.2022.121341
DOI: 10.1016/j.ica.2022.121341
ePrints DOI: 10.57711/nvk9-kx14
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