Table 2. Coordination numbers, N, of the primary O_water–O_water association in pure water,³⁵ and at 11.9 m and 19.7 m LiNTf₂ WiS solutions as measured in this work. Cut-off values of 3.4 Å and 4.0 Å (O_water–O_water primary minima in measured g(r)) were used in each case, taken as the primary minima from the O_water–O_waterg(r)s from the pure water and the WiS solutions shown in Fig. 3(e).

Cut-off/Å	11.9 mol kg−1	19.7 mol kg−1	Pure water
3.4	2.91	2.15	4.73
4.0	4.53	3.30	7.76