Virtual orbitals, excitation energies, and oscillator strengths

New Developments in Molecular Orbital Theory

1951 • 5,347 citations

Successive Approximations by the Rayleigh-Ritz Variation Method

1933 • 707 citations

<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>S</mml:mi></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>P</mml:mi></mml:math>States of the Helium Isoelectronic Sequence up to<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>Z</mml:mi><mml:mo>=</mml:mo><mml:mn>10</mml:mn><mml:mn /></mml:math>

1971 • 515 citations

Numerische Berechnung der 2S-Terme von Ortho- und Par-Helium

1930 • 512 citations

Virtual Orbitals in Hartree-Fock Theory

1970 • 274 citations

On the Continuous Absorption Coefficient of the Negative Hydrogen Ion

1945 • 253 citations

Virtual Orbitals in Hartree–Fock Theory. II

1971 • 180 citations

<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>f</mml:mi></mml:math>Values for Transitions between the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mn>1</mml:mn><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi>S</mml:mi></mml:mrow><mml:mprescripts /><mml:mrow /><mml:mrow><mml:mn>1</mml:mn></mml:mrow><mml:mrow /><mml:mrow /></mml:mmultiscripts></mml:mrow></mml:math>,<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display…

1964 • 177 citations

Selection of the Proper Canonical Roothaan-Hartree-Fock Orbitals for Particular Applications. I. Theory

1972 • 155 citations

Oscillator strengths for the helium isoelectronic sequence

1967 • 143 citations

Extended Hartree-Fock theory for excited states

1972 • 131 citations

Properties of the Helium Atom

1957 • 131 citations

The Calculation of Atomic Transition Probabilities

1969 • 104 citations

Oscillator Strengths for Singlet and Triplet Series in Neutral Helium

1966 • 80 citations

A review of theoretical developments in atomic f-values

1970 • 68 citations

Some Hartree—Fock Results for Two- and Four-Electron Atomic Systems

1967 • 59 citations

Hartree-Fock Procedure for Some<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>ns</mml:mi><mml:mrow><mml:msup><mml:mrow><mml:mi>n</mml:mi></mml:mrow><mml:mrow><mml:mo>′</mml:mo></mml:mrow></mml:msup></mml:mrow><mml:mi>s</mml:mi><mml:mi /><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi>S</mml:mi></mml:mrow><mml:mprescripts /><mml:mrow /><mml:mrow><mml:mn>1</mml:mn></mml:mrow><mml:mrow /><mml:mrow /></mml:mmultiscripts></mml:mrow></mml:math>Configurations

1966 • 43 citations

A note on virtual orbitals

1972 • 20 citations

Nature of Virtual Orbitals in Minimum-Basis Set Calculations

1971 • 18 citations