Effect of Counteranions on the Conformational Equilibrium of 1-Butyl-3-methylimidazolium-Based Ionic Liquids
Figure 1
Optimized structures of the (a) trans-trans () and (b) gauche-trans () conformers of 1-butyl-3-methylimidazolium ([bmim]+) cation by B3LYP/6-311+(d) level.