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Evidence from the photoelectron spectra of some mercury(II) compounds for the involvement of the inner 5d electrons in covalent bonding
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1974
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EngineeringPhysicsInner 5DNatural SciencesChemical BondElectron SpectroscopyApplied PhysicsHydrogen BondAtomic PhysicsPhysical ChemistryCovalent BondingHg–cn BondQuantum ChemistryChemistryHe-i Photoelectron SpectraElectronic StructurePhotoelectron Spectra
Structure corresponding to ionisation of the inner 5d electrons, observed in the He-I photoelectron spectra of HgMe2, MeHgCN, and Hg(CN)2, provides evidence for dπ→π* back-donation in the Hg–CN bond; dz2–s hybridisation is apparently not a strong effect.