6533b7dcfe1ef96bd12728e2

RESEARCH PRODUCT

A semi-empirical extrapolation technique for atomic and molecular properties derived from correlated wavefunctions

Wilfried MeyerE.l. Mehler

subject

ChemistryElectron affinityExtrapolationGeneral Physics and AstronomyPhysical and Theoretical ChemistryAtomic physicsIonization energyWave functionBond-dissociation energy

description

Abstract A semi-empirical extrapolation technique is suggested for recovering the correlation defect remaining in atomic and molecular properties calculated from highly correlated wavefunctions. These procedures are applied to PNO-CEPA and PNO-IPPA calculations on F, F + , F − , and HF in order to obtain “exact” estimates of the ionization potential, electron affinity, and dissociation energy.

https://doi.org/10.1016/0009-2614(76)80276-x