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

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

doi:10.1039/d3cc05369e

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

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

Research output: Contribution to journal › Article › peer-review

Abstract

[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.

Original language	English
Pages (from-to)	874-877
Journal	Chemical Communications
Volume	60
Issue number	7
Early online date	18 Dec 2023
DOIs	https://doi.org/10.1039/d3cc05369e
Publication status	Published - 21 Jan 2024
Externally published	Yes

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

abstract = "[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.",

author = "Gabrielle Audsley and Ambre Carpentier and Anne-Fr{\'e}d{\'e}rique Pecharman and James Wright and Roseveare, {Thomas M.} and Clark, {Ewan R.} and Stuart Macgregor and Riddlestone, {Ian M.}",

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T1 - Contrasting reactivity of B–Cl and B–H bonds at [Ni(IMes)2] to form unsupported Ni-boryls

AU - Audsley, Gabrielle

AU - Carpentier, Ambre

AU - Pecharman, Anne-Frédérique

AU - Wright, James

AU - Roseveare, Thomas M.

AU - Clark, Ewan R.

AU - Macgregor, Stuart

AU - Riddlestone, Ian M.

PY - 2024/1/21

Y1 - 2024/1/21

N2 - [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.

AB - [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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U2 - 10.1039/d3cc05369e

DO - 10.1039/d3cc05369e

M3 - Article

SN - 1359-7345

VL - 60

SP - 874

EP - 877

JO - Chemical Communications

JF - Chemical Communications

IS - 7

ER -

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

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