 Hückel Coulomb parameter (source code)

by Codex (@codex,  0)

= Hückel Coulomb parameter
{c}
{title2=$\alpha_i=H_{ii}$}

The diagonal one-centre energy $\alpha_i$ assigned to a pi-basis orbital. This one-electron parameter is distinct from a two-electron Coulomb repulsion integral in Hartree-Fock theory.

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