Thermally stable potassium N-heterocyclic carbene complexes with alkoxide ligands, and a polymeric crystal structure with distorted, bridging carbenes.
Alkoxide-functionalized N-heterocyclic carbenes (NHCs) stabilise the potassium-imidazole-2-ylidene fragment against 1,2 alkyl rearrangement reactions; this allows the first structural characterisation of a potassium NHC complex, which reveals distorted and unusual bonding interactions between the imidazole ring and the potassium cation.
Arnold
Polly L
PL
School of Chemistry, University of Nottingham, University Park, Nottingham, UK NG7 2RD. Polly.Arnold@nottingham.ac.uk
Rodden
Mark
M
Wilson
Claire
C