the structure over the whole range of concentrations. A
development similar to the one that leads to Eq. (
2) de-
rives the average unpaired RDF from the corresponding
paired quantities:
ρiρj gij(k) = ˜ρ3 ˜w(k) (1 − δij ) + ˜ρi ˜ρj ˜gij(k)
+ ˜ρ3 ˜w(k/ 2)
[
˜ρi˜g3i + ˜ρj ˜g3j
]
(k) (5)
+ ˜ρ 2
3 [ ˜w(k/ 2)]2 ˜g33(k)