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Updated: May 27, 2026

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of Chalcogenidoplumbates(II or IV)
Published on: December 29, 2016
Spectroscopic and structural characterization of the CyNHC adduct of B2pin2 in solution and in the solid state
Christian Kleeberg1, Andrew G Crawford, Andrei S Batsanov
1Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, United Kingdom.
Abstract:
The Lewis base adduct of B(2)pin(2) and the NHC (1,3-bis(cyclohexyl)imidazol-2-ylidene), which was proposed to act as a source of nucleophilic boryl groups in the β-borylation of α,β-unsaturated ketones, has been isolated, and its solid state structure and solution behavior was studied. In solution, the binding is weak, and NMR spectroscopy reveals a rapid exchange of the NHC between the two boron centers. DFT calculations reveal that the exchange involves dissociation and reassociation of NHC rather than an intramolecular process.
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