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The Metal-Mediated Coupling of the Diselenaundecaborate Anion [Se2B9H10]

Lookup NU author(s): Emeritus Professor Bill CleggORCiD



This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).


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.

Publication metadata

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


DOI: 10.1016/j.ica.2022.121341

ePrints DOI: 10.57711/nvk9-kx14


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