Again, the second summation now explicitly includes the constraint that the pairs of s, s and s , s cannot be the same, and reintroduces the factors P α that account for intramolecular connectivity. This calculation is not considerably different from previous versions of this 2-particle diagram, though now there are path integrals over all possible conformations of the two polyelectrolytes. This can be analyzed in the same way as for the small molecule electrolytes, in that we can consider the ring diagrams with Ψ-bonds between ρ-circles;