Chapter 1 presents a review on the reactions of electrophilic ketones with palladium and platinum compounds. Further reactions of various palladium(0) platinum(0) and platinum(II) complexes with the electrophilic ketones hexafluoropropan-2-one, chloropentafluoropropan- 2-one 1,3-dichlorotetrafluoropropan-2-one, 1,1,3-trichlorotrifluoropropan- 2-one, acetonedicarboxylic acid dimethyl ester and diethyl ketomalonate are described. Chapter 2 contains the results of some investigations into the reactivity of some iridium(I) olefin complexes towards hexafluorobut- 2-yne and dimethylacetylenedicarboxylate; hexafluorobut-2-yne reacts with complexes of the type [IrCl(cod)]2 and [Ir(dithio) (cod)] to produce previously unknown olefin-acetylene complexes. Chapter 3 discusses the preparation of the fluoro-olefin complexes [IrCl(cod) (CF2=CFX)] and [Ir(dithio) (cod) (CF2=CFX)] where X=F, Cl,Br,H,CF3. Studies of their 19F n.m.r. spectra indicates the presence of two isomers in many of these fluoro-olefin complexes.