Atomic partitioning of the dissociation energy of the P-O(H) bond in hydrogen phosphate anion (HP[O.sub.4.sup.2-]: disentangling the effect of [Mg.sup.2}

The basic principles underlying the remote electronic effects of [Mg.sup.2} on the strength of a simple model of the P-O bond are explored. The results have shown that an individual bond might be strengthened by complex formation but the dissociation is globally more favorable due to other more dominant driving forces.