After a certain time, the direction vector assumes an orientation that might be parallel or near It is quite evident that 𝜀 𝐷𝐷 dominates the zero frequency values in all these ionic DESs, and the ro-translation contribution (cross term), found to be small magnitude and negative, reduces the overall value. In addition, these pieces reflect anion identity dependence. Subsequently, the real and the imaginary components of the frequency-dependent generalized dielectric function (Σ 0 (𝜔)), simulated at four different temperatures for these ionic DESs, are presented below in primarily focussed on optimizing the interaction parameters to reproduce the experimental static dielectric constant of the neat molten acetamide. This interaction potential has been found