SEARCH Articles Figures Tables Bonding three-centre, four-electron Five-Center, Four-Electron Bonding Structures Five-center four-electron bonding Four-center three-electron bonding Four-center two-electron bonding Four-center, two-electron bonds Four-centre two-electron bonding The Three-electron Bond with Four or More AOs Three center four electron bond model Three-center four-electron bond Three-center, four-electron bonding interactions Valence Bond Treatment of Four-Electron Systems