自标特大对 Pi(n )Bonding ■ Pi bonds form after sigma bonds. ■ Sideways overlap of parallel p orbitals. node destructive(antibonding)interaction antibonding MO energy constructive (bonding)interaction T bonding MO Copyright2005 Pearson Prentice Hall,Inc.Pi (π)Bonding ◼Pi bonds form after sigma bonds. ◼Sideways overlap of parallel p orbitals