Metal complexes containing cumulenylidene ligands, {LmM}=C(=C)n=CRR′ (n ≥ 2)

The syntheses, structures and chemistry of metal complexes containing the unsaturated car bene ligands:C=C)(n)=CRR'(ngreater than or equal to2) are reviewed. (C) 2004 Elsevier B.V. All rights reserved.