Diborane Cu paper Angewandte Revised no highlighting.pdf (1.46 MB)
Bottleable neutral analogues of [B2H5]- as versatile and strongly binding eta2 donor ligands
journal contribution
posted on 2023-06-09, 12:28 authored by Sunewang R Wang, Dominic Prieschl, James D Mattock, Merle Arrowsmith, Conor Pranckevicius, Tom E Stennett, Rian D Dewhurst, Alfredo VargasAlfredo Vargas, Holger BraunschweigHerein 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 sB-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 s donation from and p backdonation to the pseudo-p-like B-B bond account for their formation. Astoundingly, these copper sB-B-complexes are inert to ligand exchange with pyridine under either heating or photoirradiation.
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Publication status
- Published
File Version
- Accepted version
Journal
Angewandte Chemie International EditionISSN
1433-7851Publisher
WileyExternal DOI
Issue
21Volume
57Page range
6347-6351Department affiliated with
- Chemistry Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2018-03-19First Open Access (FOA) Date
2019-03-14First Compliant Deposit (FCD) Date
2018-03-19Usage metrics
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