The Journal of Chemical Physics · 1963 · 88 citations · 8 references
Natural SciencesChemistryPhysicsComputational ChemistryQuantum ChemistryTheoretical PhysicsAb Initio MethodsDensity Functional TheoryHartree-fock TheoryMolecular Orbital TheoryMolecular SymmetryOpen-shell SystemsBonding OrbitalsCanonical OrbitalsHartree-fock ConfigurationsOpen-shell Density Functional TheorySymmetry In Molecular Orbitals
A general method is described for obtaining SCF orbitals for electronic systems without restriction on the number or the symmetry of open-shell orbitals. A separation on the basis of symmetry designation is made at the beginning. The pseudo-eigenvalue equations are obtained from the SCF equations by the introduction of a new form of coupling operator. The new equations must be solved individually for orbitals of a separate symmetry designation. Some examples are given.
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New Developments in Molecular Orbital Theory
Clemens Roothaan · Reviews of Modern Physics · 1951 · 5.5K citations
Natural Sciences, Chemistry, Physics +14
Self-Consistent Orbitals for Radicals
John A. Pople, R. K. Nesbet · The Journal of Chemical Physics · 1954 · 1.6K citations · Full text
Natural Sciences, Chemistry, Physics +12
Some Recent Advances in Density Matrix Theory
R. McWeeny · Reviews of Modern Physics · 1960 · 1.5K citations