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Boryl Anion Attacks Transition-Metal Chlorides To Form Boryl Complexes: Syntheses, Spectroscopic, and Structural Studies on Group 11 Borylmetal Complexes

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  • The authors thank Prof. Todd B. Marder for helpful discussions. This work was supported by a Grant-in-Aid for Scientific Research on Priority Areas (No. 17065005, “Advanced Molecular Transformations of Carbon Resources”) and for Young Scientists (B) (18750027) from MEXT, Japan and by Kurata Memorial Hitachi Science and Technology Foundation.

Abstract

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Nucleophilic borylation: Transmetalation from boryllithium compounds to Group 11 transition-metal chlorides gives the corresponding boryl complexes (see scheme). Borylsilver and borylgold complexes that have three-center-two-electron M[BOND]B bonds are fully characterized for the first time. The NMR spectra and solid-state structures of the resulting boryl complexes reveal that the boryl ligand is one of the strongest known σ-donor ligands.

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