Aggregated ion pairs of [MIM+][N(CN)2−]2 ionic liquid: A quantum chemical study in solvents with different dielectric constants

The optimized structures resulted from the interaction between two cations and two anions in methyl imidazolium dicyanamide ionic liquid [MIM+][N(CN)2−] have been studied using MP2, B3LYP, M052X and M062X methods with the 6-311++G(2d,2p) basis set.