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Contents:

  • Installation
  • Basis functions
  • Integral evaluation
  • Basis sets and molecules
  • Electronic structure calculations
  • Molecular Orbital Diagrams
  • Orbital visualization
  • Orbital localization: Foster-Boys
  • Matrix visualization
  • Geometry optimization
  • Population Analysis
  • Symmetry-adapted basis sets
  • Gallery
  • Community guidelines
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Gallery

_static/img/gallery/mo_ch4_can.jpg

Isosurface visualization of all canonical molecular orbitals of methane computed at the Hartree-Fock level using a STO-3G basis set. The orbitals are shown as constant-value isosurfaces of the molecular wavefunction, illustrating the highly delocalized nature of the canonical eigenstates imposed by molecular symmetry.

_static/img/gallery/mo_ch4_fb.jpg

Isosurface visualization of Foster-Boys localized molecular orbitals of methane computed at the Hartree-Fock/STO-3G level. Orbital localization transforms the delocalized canonical states into chemically intuitive orbitals. For methane, this results in a quadruple degenerate set of state corresponding to the equivalent C-H bonds.

_static/img/gallery/mo_co_can.jpg

Isosurface visualization of all canonical molecular orbitals of carbon monoxide computed at the Hartree-Fock level using a STO-3G basis set.

_static/img/gallery/mo_co_fb.jpg

Isosurface visualization of Foster-Boys localized molecular orbitals of carbon monoxide computed at the Hartree-Fock/STO-3G level. Orbital localization transforms the delocalized canonical states into chemically intuitive orbitals. For carbon monoxide, we see a threefold degenerate set of states correspond to the C-O triple bond.

_static/img/gallery/mo_dodecahedrane_can.jpg

Isosurface visualization of all canonical molecular orbitals of dodecahedrane computed at the Hartree-Fock level using a STO-3G basis set. The orbitals are shown as constant-value isosurfaces of the molecular wavefunction, illustrating the highly delocalized nature of the canonical eigenstates imposed by molecular symmetry.

_static/img/gallery/mo_dodecahedrane_fb.jpg

Isosurface visualization of Foster-Boys localized molecular orbitals of dodecahedrane computed at the Hartree-Fock/STO-3G level. Orbital localization transforms the delocalized canonical states into chemically intuitive orbitals, clearly revealing individual C-C and C-H bonding interactions throughout the molecular framework.

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