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Calculated IE, proton affinity, acidity (α), basicity (β), and net basicity values of ILs evaluated in this study
| Compound | IE, kcal/mol | Proton affinity (base), kcal/mol | α, eV | β, eV | Net basicity |
| [FurEt2NH][H2PO4] (1) | 165.51 | 233 | 2.14 | 3.53 | 1.39 |
| [VanEt2NH][H2PO4] (2) | 118.14 | 234 | 2.35 | 2.99 | 0.63 |
| [p-AnisEt2NH][H2PO4] (3) | 117.83 | 235 | 2.24 | 3.37 | 1.13 |
| [C2mim][OAc] (4) | 106.42 | 257 | 2.28 | 2.97 | 0.69 |
