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...
| Autores: | , , , , |
|---|---|
| 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 |
| Sumario: | 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. |
|---|