SOME COMPLEXES OF ALL-CARBON LIGANDS AND RELATED CHEMISTRY

Recent developments in the chemistry of all-carbon ligands and related molecules include the synthesis and reactions of mono-, hi-and poly-n uclear complexes containing C-2, C-4 and C-8 ligands, as well as of su bstituted derivatives of allenylidene (:C=C=CH2) and butatrienylidene (:C=C=C=CH2) ligands. The work of the Adelaide group on the pentanucle ar ruthenium cluster carbonyl containing a reactive C-2 ligand and on the synthesis, chemistry and electrochemistry of a variety of complexe s containing C-4 and C-8 ligands, is described. (C) 1997 Elsevier Scie nce S.A.