The first bismuth–NHC complexes†
Abstract
The synthesis, isolation and crystallographic characterization of the first N-heterocyclic carbene adducts of bismuth is reported, by direct reaction of the Dipp2NHC (Dipp = 2,6-diisopropylphenyl) or iPr2(Me2)NHC with BiCl3. This represents the last non-radioactive element from groups 13–17 for which an NHC–element fragment remained unreported.