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Reaction of LiNR, ( R = Me,Si) with [RhCl-on heating decompose with elimination of HN(SiMe,),; (PPh3)3] or [RuH(Cl)(PPh,),] in tetrahydrofuran (thf) the Ru" compound has equivalent P atoms, but inyields the cyclohexane-soluble, monomeric, diamagnetic amides [Rh(NR,)(PPh,),] or [RuH(NR,) (PPh,),], which equivalent SiMe, environments.

The kinetics of gas phase reactions of the ion C5H5Fe(+) with oxygen (Me2CO, Me2O, MeOH, iso-propanol, H2O) and nitrogen (NH3, NH2Me, NHMe2, NMe3) donor ligands have been studied by ion trap mass spectrometry. While in the literature reactions of the ion Fe(+), with the same ligands, the principal reaction path involves fragmentation in almost all the reactions of the ion C5H5Fe(+), formation of adduct ions is the major reaction path. The reactivity of these two ions is briefly compared in the ion trap conditions. Kinetic data for the ion C5H5Fe(+) indicate that the reactions show a large range of efficiency and a linear correlation is found between the log of the reaction rate constants and the ionization energy of ligands with the same donor atom.

The electron transmission spectra, in the 0-5-eV energy range, of the bis(í/3-allyl) complexes of nickel, palladium, and platinum are reported. Each spectrum displays three resonances associated with electron capture into the three empty it* ligand orbitals. The measured electron attachment energies are well reproduced by MScalculations on the Ni and Pd compounds.Calculated charge distributions in the neutral states of these complexes predict a sizable negative charge density at the metal atom.