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Título: | Tetracopper σ-Bound μ-Acetylide and -Diyne Units Stabilized by a Naphthyridine-based Dinucleating Ligand |
Autor: | Ríos, Pablo CSIC; See, Matthew S; Handford, Rex C; Cooper, Jason K; Tilley, T Don | Palabras clave: | Acetylide Alkynes Naphthyridine Tetracopper σ-Bonding |
Fecha de publicación: | 6-nov-2023 | Editor: | Wiley-VCH | Citación: | Angewandte Chemie - International Edition 62(45): e202310307 (2023) | Resumen: | Reactions of a dicopper(I) tert-butoxide complex with alkynes possessing boryl or silyl capping groups resulted in formation of unprecedented tetracopper(I) μ-acetylide/diyne complexes that were characterized by NMR and UV/Vis spectroscopy, mass spectrometry and single-crystal X-ray diffraction. These compounds possess an unusual μ4 -η1 :η1 :η1 :η1 coordination mode for the bridging organic fragment, enforced by the rigid and dinucleating nature of the ligand utilized. Thus, the central π system remains unperturbed and accessible for subsequent reactivity and modification. This has been corroborated by addition of a fifth copper atom, giving rise to a pentacopper acetylide complex. This work may provide a new approach by which metal-metal cooperativity can be exploited in the transformation of acetylide and diyne groups to a variety of substrates, or as a starting point for the controlled synthesis of copper(I) alkyne-containing clusters. | URI: | http://hdl.handle.net/10261/355260 | DOI: | 10.1002/anie.202310307 | ISSN: | 1433-7851 |
Aparece en las colecciones: | (IIQ) Artículos |
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