Question
Many post-Hartree-Fock methods have been created to account for the difference between the predicted and exact energies of a system. For 10 points each:
[10m] Name this phenomenon that provides the name of that difference. This phenomenon and exchange are combined in a namesake “energy” in the Kohn-Sham equations.
ANSWER: electron correlation [accept, but DO NOT REVEAL, Coulomb correlation]
[10e] One form of electron correlation based on the repulsion between electrons in a system is named for this physicist, who lends his name to an inverse-square law that describes the electric force between two charged objects.
ANSWER: Charles-Augustin de Coulomb [accept Coulomb correlation or Coulomb’s law]
[10h] This method accounts for correlation by using a linear combination of eponymous state functions as a variational wavefunction. Truncated versions of this method may have the Davidson correction applied to them to account for higher excited states.
ANSWER: configuration interaction [or CI; accept any combination of CI with the letters S, D, T, or Q appended to it, such as CISD or CISDTQ]
<Omer, Chemistry>
Summary
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