title: Spectroscopic and structural characterization of the CyNHC adduct of B2pin2 in solution and in the solid state.
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.
authors: Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, United Kingdom.
authors: Christian
authors: C
authors: Kleeberg
authors: Andrew G
authors: AG
authors: Crawford
authors: Andrei S
authors: AS
authors: Batsanov
authors: Paul
authors: P
authors: Hodgkinson
authors: David C
authors: DC
authors: Apperley
authors: Man Sing
authors: MS
authors: Cheung
authors: Zhenyang
authors: Z
authors: Lin
authors: Todd B
authors: TB
authors: Marder