Experimental Signature of Microheterogeneity in Ionic Liquid–H 2 O Systems and Their Perturbation by Adding Li + Salts: A Pulsed Gradient Spin‐Echo NMR Approach

Distinct microheterogeneity has been observed in the [OMIM]Br–H 2 O system, which is interestingly perturbed by the addition of Li + salts, indicating unusual diffusivity of [OMIM]Br and H 2 O molecules. However, the diffusional dynamics of water clusters show contrasting salting behavior at higher concentrations of Li + salts, following the classical salting phenomenon in lower amounts. In contrast, the existing microheterogeneity in the [BMIM]Br–H 2 O system is weak enough to show any perturbation caused by the Li + salts on the NMR time scale.