Wang, Sunewang R, Prieschl, Dominic, Mattock, James D, Arrowsmith, Merle, Pranckevicius, Conor, Stennett, Tom E, Dewhurst, Rian D, Vargas, Alfredo and Braunschweig, Holger (2018) Bottleable neutral analogues of [B2H5]- as versatile and strongly binding eta2 donor ligands. Angewandte Chemie International Edition, 57 (21). pp. 6347-6351. ISSN 1433-7851
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Abstract
Herein we report the discovery that two bottleable, neutral, base-stabilized diborane(5) compounds are able to bind strongly to a number of copper(I) complexes exclusively through their B-B bond. The resulting complexes represent the first known complexes containing unsupported, neutral σB-B diborane ligands. Single-crystal X-ray analyses of these complexes show that the X-Cu moiety (X = Cl, OTf, C6F5) lies opposite the bridging hydrogen of the diborane and is near perpendicular to the B-B bond, interacting almost equally with both boron atoms and causing a B-B bond elongation. DFT studies show that σ donation from and π backdonation to the pseudo-π-like B-B bond account for their formation. Astoundingly, these copper σB-B-complexes are inert to ligand exchange with pyridine under either heating or photoirradiation.
Item Type: | Article |
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Schools and Departments: | School of Life Sciences > Chemistry |
Subjects: | Q Science > QD Chemistry |
Depositing User: | Alfredo Vargas |
Date Deposited: | 19 Mar 2018 16:09 |
Last Modified: | 04 Jul 2018 10:44 |
URI: | http://srodev.sussex.ac.uk/id/eprint/74424 |
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