II. Ion exchange procedure to obtain BMMIM salts with different anions [BMMIM] [HCO3], [BMMIM]2 [CO3], [BMMIM] HCO2, and [BMMIM]2 [C2O4] were synthesized using an ion exchange procedure, employing BMMIM Cl and the respective potassium salts (synthesized salts are shown in Figure S6.2). Subsequently, IR spectra were recorded (as depicted in Figure S6.3) to aid in the understanding of the assignments elucidated in the text. Figure S6.2. Synthesized imidazolium products with different counter ions. Imidazolium oxalate and imidazolium bicarbonate appeared as white solids, while imidazolium carbonate and imidazolium formate were obtained in the form of viscous liquids. Figure S6.3. FTIR spectra of the as-synthesized imidazolium salts. All spectra were acquired in atmospheric conditions. A total of 64 scans were recorded and subsequently averaged, employing a resolution of 2 cm-1.
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