Journal of the Chemical Society Dalton Transactions · 1972 · 25 citations · 0 references
Natural SciencesChemistryInorganic ChemistryPhysical ChemistrySpectroscopyBinding ThermodynamicsCoordination ChemistryLigand BindingMetal-ligand BondingTransition Metal ChemistryTransition Metal ComplexesComplex Formation StudiesElectronic Spectra Of Transition Metal ComplexesElectronic Structure AnalysisElectronic Structure Of Metal ComplexesLigand Effects On ReactivityLigand Electronic EffectsMetal-ligand Bonding AnalysisValence Electron Configurations
Metal and ligand non-valence electron ionisation energies are reported for a number of complexes of PtO, RhI, and IrI with olefins, substituted olefins, oxygen and other unsaturated ligands. The constancy and magnitude of the metal binding energies in (Ph3P)2Pt(C2R4) and (Ph3P)2Rh(C2R4)Cl, in contrast to the significant variations observed in Ir(CO)(PPh3)2XY (X = Cl or I; Y = olefin, CO, O2, or NO+, BF4–) is related to the strong π-basicity of the (Ph3P)2Pt and (Ph3P)2RhCl moieties. Crystallographic and thermodynamic data on some of the complexes are discussed together with observed C(1s) satellite peaks.