The structure factor is calculated using Eq.( ) and compared with X-ray diffraction experimental results in Fig. (a) for the 0.95 M composition and 24 : 76 EC/EMC ratio. The X-ray data is for 1 M composition and the EC/EMC ratio is 3 : 7, measured at a slightly lower temperature of 300 K as compared to the simulations. The peaks of S(⃗ q) of the simulations occur at almost the same wave vectors as observed for the X-ray data. Interestingly, this structural property is very insensitive to the employed force field. As seen in 61 the structure factor of pure EC and EMC mixture is almost same even after adding salt LiPF 6 . Thus, it can be concluded that the detailed information of local environments are not captured by the structure factor.