Relativistic and correlation effects in pseudopotential calculations for Br, I, HBr, HI, Br2, and I2

作者: P. Schwerdtfeger , L. v. Szentpály , K. Vogel , H. Silberbach , H. Stoll

DOI: 10.1063/1.450454

关键词: Bond-dissociation energyTheory of relativityPseudopotentialIonization energyDissociation (chemistry)Bond lengthElectronic structureAtomic physicsChemistryHydrobromic acid

摘要: Pseudopotentials are used for investigating the effects of relativity and correlation on atomic properties Br I, bond lengths dissociation energies molecules HBr, HI, Br2, I2. The pseudopotentials adjusted to Br6+ I6+ different levels approximation: (i) Hartree–Fock data nonrelativistic case, (ii) Dirac–Fock relativistic (iii) experimental case including correlation. At highest level approximation, ionization energies, electron affinities, molecular obtained in good agreement with results.

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