σ-BH activation of NHC → BH3 fragments in dinuclear Cu complexes

We explored herein the coordination properties of the bis(phosphine)NHC → BH3 ligand toward cationic and neutral Cu centres. The synthesis of three dinuclear Cu complexes featuring σ-BH interactions is reported. Noticeably, in each Cu complex, a BH moiety bridges two Cu centres via two σ-BH interact...

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Autores: Camy, Aurèle, Martins-Bessa, David, Vendier, Laure, Fernández, Israel, Bontemps, Sébastien
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/402925
Acceso en línea:http://hdl.handle.net/10261/402925
https://api.elsevier.com/content/abstract/scopus_id/105003051953
Access Level:acceso abierto
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spelling σ-BH activation of NHC → BH3 fragments in dinuclear Cu complexesCamy, AurèleMartins-Bessa, DavidVendier, LaureFernández, IsraelBontemps, SébastienWe explored herein the coordination properties of the bis(phosphine)NHC → BH3 ligand toward cationic and neutral Cu centres. The synthesis of three dinuclear Cu complexes featuring σ-BH interactions is reported. Noticeably, in each Cu complex, a BH moiety bridges two Cu centres via two σ-BH interactions in a μ2-η1η1 BH coordination mode. NMR, IR, deuterium incorporation and X-ray diffraction analyses, supported by DFT investigation, enabled us to finely measure the level of activation of the B-H bond depending on the coordination environment. The study shows a gradual increase of activation whether the BH fragment is involved in none, one or two σ-BH interactions with Cu centres.AC, DM-B and SB thank the CNRS and the French Ministry for financial support. This work has benefited from French State aid managed by the Agence Nationale de la recherche under France 2030 plan (ANR-22-PESP-0010 Projet ciblé “POWERCO2”) within the PEPR project SPLEEN. Dr Aswin Chandran is acknowledged for the synthesis of RuH2(H2)2P (Cy3)2. IF is thankful for the financial support from the Spanish MCIN/AEI/10.13039/501100011033 (PID2022139318NB-I00 and RED2022-134287-T). For the purpose of Open Access, a CC-BY public copyright license has been applied by the authors to the present document and will be applied to all subsequent versions up to the Author Accepted Manuscript arising from this submission.Peer reviewedRoyal Society of Chemistry (UK)Centre National de la Recherche Scientifique (France)Ministerio de Ciencia e Innovación (España)Fernández, Israel [0000-0002-0186-9774]Bontemps, Sébastien [0000-0002-4950-9452]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520252025info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/402925https://api.elsevier.com/content/abstract/scopus_id/105003051953reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#nfo:eu-repo/grantAgreement///PID2022-139318NB-I00info:eu-repo/grantAgreement///RED2022-134287-Thttps://doi.org/10.1039/d5dt00586hSíinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/4029252026-05-22T06:33:51Z
dc.title.none.fl_str_mv σ-BH activation of NHC → BH3 fragments in dinuclear Cu complexes
title σ-BH activation of NHC → BH3 fragments in dinuclear Cu complexes
spellingShingle σ-BH activation of NHC → BH3 fragments in dinuclear Cu complexes
Camy, Aurèle
title_short σ-BH activation of NHC → BH3 fragments in dinuclear Cu complexes
title_full σ-BH activation of NHC → BH3 fragments in dinuclear Cu complexes
title_fullStr σ-BH activation of NHC → BH3 fragments in dinuclear Cu complexes
title_full_unstemmed σ-BH activation of NHC → BH3 fragments in dinuclear Cu complexes
title_sort σ-BH activation of NHC → BH3 fragments in dinuclear Cu complexes
dc.creator.none.fl_str_mv Camy, Aurèle
Martins-Bessa, David
Vendier, Laure
Fernández, Israel
Bontemps, Sébastien
author Camy, Aurèle
author_facet Camy, Aurèle
Martins-Bessa, David
Vendier, Laure
Fernández, Israel
Bontemps, Sébastien
author_role author
author2 Martins-Bessa, David
Vendier, Laure
Fernández, Israel
Bontemps, Sébastien
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Centre National de la Recherche Scientifique (France)
Ministerio de Ciencia e Innovación (España)
Fernández, Israel [0000-0002-0186-9774]
Bontemps, Sébastien [0000-0002-4950-9452]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
description We explored herein the coordination properties of the bis(phosphine)NHC → BH3 ligand toward cationic and neutral Cu centres. The synthesis of three dinuclear Cu complexes featuring σ-BH interactions is reported. Noticeably, in each Cu complex, a BH moiety bridges two Cu centres via two σ-BH interactions in a μ2-η1η1 BH coordination mode. NMR, IR, deuterium incorporation and X-ray diffraction analyses, supported by DFT investigation, enabled us to finely measure the level of activation of the B-H bond depending on the coordination environment. The study shows a gradual increase of activation whether the BH fragment is involved in none, one or two σ-BH interactions with Cu centres.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
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info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/402925
https://api.elsevier.com/content/abstract/scopus_id/105003051953
url http://hdl.handle.net/10261/402925
https://api.elsevier.com/content/abstract/scopus_id/105003051953
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
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nfo:eu-repo/grantAgreement///PID2022-139318NB-I00
info:eu-repo/grantAgreement///RED2022-134287-T
https://doi.org/10.1039/d5dt00586h
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Royal Society of Chemistry (UK)
publisher.none.fl_str_mv Royal Society of Chemistry (UK)
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
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