SEARCH Articles Figures Tables Atom superposition, electron delocalization molecular orbital approach Atom-superposition electron-delocalization molecular orbital Atom-superposition electron-delocalization molecular orbital theory Delocalization tails of natural localized molecular orbitals Delocalized Electrons An Explanation Based on Molecular Orbital Theory Delocalized Molecular Orbital Theory for 4-Electron 3-Centre Bonding Units Delocalized electrons molecular orbital description Delocalized molecular orbital Delocalized orbital Delocalized orbitals Electron delocalization molecular orbital Highest occupied molecular orbital delocalized state Lowest unoccupied molecular orbital delocalized state Molecular Orbital Theory Electron Delocalization Molecular orbital theory delocalization Orbits delocalized