SEARCH Articles Figures Tables Bond breaking using restricted orbitals Hartree-Fock orbitals, restricted Quasi-restricted Hartree-Fock orbitals Quasi-restricted orbitals Restricted spin orbitals Spin-restricted Hartree-Fock orbitals Spin-restricted open-shell Hartree-Fock ROHF) orbitals Symmetry restrictions in the orbital basis Symmetry restrictions in the spin-orbital basis