Contrasting reactivity of B–Cl and B–H bonds at [Ni(IMes) 2 ] to form unsupported Ni-boryls

Gabrielle Audsley; Ambre Carpentier; Anne-Frédérique Pécharman; James Wright; Thomas M Roseveare; Ewan R. Clark; Stuart A Macgregor; Ian Riddlestone

doi:10.1039/D3CC05369E

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Contrasting reactivity of B–Cl and B–H bonds at [Ni(IMes) 2 ] to form unsupported Ni-boryls

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Contrasting reactivity of B–Cl and B–H bonds at [Ni(IMes) 2 ] to form unsupported Ni-boryls

Gabrielle Audsley, Ambre Carpentier, Anne-Frédérique Pécharman, James Wright, Thomas M Roseveare, Ewan R. Clark, Stuart A Macgregor and Ian Riddlestone

Chemical communications (Cambridge, England), Vol.60(7), pp.874-877

Winter 2024

DOI: https://doi.org/10.1039/D3CC05369E

PMID: 38164828

Abstract

Nickel; Boron; Transition Metal; Boryl; Density Functional theory

[Ni(IMes) 2 ] reacts with chloroboranes via oxidative addition to form rare unsupported Ni-boryls. In contrast, the oxidative addition of hydridoboranes is not observed and products from competing reaction pathways are identified. Computational studies relate these differences to the mechanism of oxidative addition: B–Cl activation proceeds via nucleophilic displacement of Cl − , while B–H activation would entail high energy concerted bond cleavage.

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Title: Contrasting reactivity of B–Cl and B–H bonds at [Ni(IMes) 2 ] to form unsupported Ni-boryls
Creators: Gabrielle Audsley (Author) - School of Chemistry and Chemical Engineering, University of Surrey, Guildford GU2 7XH, UK
Ambre Carpentier (Author) - Institute of Chemical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK
Anne-Frédérique Pécharman (Author) - Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK
James Wright (Author) - School of Chemistry and Chemical Engineering, University of Surrey, Guildford GU2 7XH, UK
Thomas M Roseveare (Author) - Department of Chemistry, University of Sheffield, S3 7HF, UK
Ewan R. Clark (Author) - School of Physical Sciences, University of Kent, Canterbury, CT2 7NH, UK
Stuart A Macgregor (Corresponding Author) - Institute of Chemical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK
Ian Riddlestone (Corresponding Author) - University of Surrey, School of Chemistry and Chemical Engineering
Publication Details: Chemical communications (Cambridge, England), Vol.60(7), pp.874-877
Date published: 18/01/2024
Date accepted: 17/12/2023
Grants: Unsupported Nickel-Boron and Nickel-Aluminium Complexes for Tunable Cooperative Reactivity, R21-1723146519, Royal Society of Chemistry (United Kingdom, London) - RSC
Identifiers: 99853966402346
Academic Unit: School of Chemistry and Chemical Engineering
Language: English
Resource Type: Journal article

Contrasting reactivity of B–Cl and B–H bonds at [Ni(IMes) 2 ] to form unsupported Ni-boryls

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