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The qualitative molecular orbital approach based on orbital interactions was used to explore the nature of bonding in cyclic fluorophosphazenes (F 2 PN) n , where n is 2–6. Besides the classical skeleton of σ-bonds, only two, one radial and one axial, 2n-center two-electron π-bonds significantly participate in the extra stabilization of the (PN) n ring. The π-radial interaction...
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