Alternatively, for the generalised anisodromic systems, with nonzero Emin and Eeq, the binary partitioning dependence only acts on the ΔEr-dependent part of the barrier (equation 18, note that both ΔE ‡ and ΔE ‡ -1 are presented as functions, where ΔEr is the reaction energy of the forward reaction). The total sum is conserved at 1, and is intrinsically dependent on the proportions between the barriers and the barrier at equilibrium as a result of the symmetry constraint.