Table 5. Calculated Partial Molar Excess Enthalpy (i.e., ΔHE,∞IL) and Entropy (i.e., ΔSE,∞IL) of Each IL at Infinite Dilution Using Molecular Descriptors in “A” and “B” Parameters of van’t Hoff Equation.
| mixture IL/H2O | temperature range (K) | range of ln (γH2∞OExp) | ΔHE,∞IL(J·(mol)−1) | ΔSE,∞IL(J·(K·mol)−1) |
|---|---|---|---|---|
| [C4C1Im][SCN] | 328–368 | (−1.298) – (−1.269) | –638.42 | 5.32 |
| [C4–3-C1Py][CF3SO3] | 318–358 | (−0.116) – (−0.267) | 667.88 | 4.57 |
| [C4C1Pyrro][FAP] | 318–368 | (2.236) – (1.350) | 8130.46 | 10.05 |
| [C3C1Pip][NTF2] | 308–358 | (1.488) – (0.896) | 10460.40 | 22.69 |
| [HOC3Py][FAP] | 308–358 | (0.974) – (0.548) | 6046.38 | 10.44 |
| [C4C1Im][TFA] | 333–393 | (−1.851) – (−1.639) | 6046.38 | 10.44 |
| [C2C1Im][SCN] | 328–368 | (−1.298) – (−1.269) | –6402.96 | –4.02 |
| [C4C1Pip][SCN] | 328–368 | (−1.105) – (−1.064) | –642.39 | 5.56 |
| [C4–4-C1Py][SCN] | 328–368 | (−1.187) – (−1.155) | –481.46 | 5.31 |
| [C4C1Pyrro][SCN] | 328–368 | (−1.335) – (−1.269) | –743.70 | 5.18 |
| [C6C1Im][SCN] | 328–368 | (−0.572) – (−0.623) | –475.03 | 5.42 |
| [C6-iqui][SCN] | 328–368 | (−0.913) – (−0.872) | –627.75 | 4.81 |
| [C4C1Mor][C(CN)3] | 318–368 | (0.029) – (−0.248) | –657.04 | 4.26 |
| [C4C1Pyrro][C(CN)3] | 318–368 | (−0.027) – (−0.261) | 3780.99 | 13.47 |
| [C4C1Pyrro][B(CN)4] | 318–368 | (0.765) – (0.246) | 4460.35 | 13.33 |
| [C10C1Im][B(CN)4] | 328–378 | (0.751) – (0.300) | 8595.49 | 21.32 |
| [C2C1Im][B(CN)4] | 298–358 | (0.806) – (0.254) | 8443.44 | 19.56 |
| [C6C1Im][B(CN)4] | 318–368 | (0.717) – (0.285) | 8428.13 | 21.46 |
| [C4C1Pyrro][CF3SO3] | 318–368 | (−0.145) – (−0.339) | 8442.78 | 20.71 |
| [C4C1Im][CF3SO3] | 328–368 | (−0.212) – (−0.362) | 966.03 | 4.78 |
| [C2C1Im][TFA] | 348–368 | (−1.944) – (−1.838) | 802.64 | 4.68 |
| [C6OC1C1Im][NTF2] | 298–358 | (1.474) – (0.712) | –6406.92 | –3.77 |
| [(C6OCH2)2Im][NTF2] | 298–368 | (1.488) – (0.593) | 10058.68 | 21.84 |
| [C4–4-C1Py][NTF2] | 298–368 | (1.581) – (0.717) | 9763.95 | 20.66 |
| [N1112OH][NTF2] | 318–368 | (0.270) – (−0.069) | 10210.83 | 22.40 |
| [C8iquin][NTF2] | 328–368 | (1.398) – (0.838) | 7813.72 | 23.27 |
| [C4C1Pip][NTF2] | 308–358 | (1.566) – (0.879) | 10473.06 | 22.52 |
| [S222][NTF2] | 308–368 | (1.363) – (0.631) | 10178.70 | 22.46 |
| [C1C1Im][NTF2] | 303–333 | (1.050) – (0.698) | 10265.26 | 23.10 |
| [C2C1Im][NTF2] | 293–323 | (1.302) – (0.932) | 10312.13 | 22.78 |
| [C2Py][NTF2] | 303–323 | (1.022) – (0.693) | 9957.94 | 22.84 |
| [HOC3Py][NTF2] | 318–378 | (0.425) – (0.029) | 8395.42 | 23.03 |
| [COC2C1Pip][NTF2] | 318–368 | (1.208) – (0.625) | 10367.70 | 22.74 |
| [COC2C1Mor][NTF2] | 318–368 | (0.912) – (0.343) | 9832.35 | 23.01 |
| [COC2C1Pyrro][NTF2] | 318–368 | (1.147) – (0.615) | 10349.27 | 22.86 |
| [C5C1Pip][NTF2] | 308–358 | (1.619) – (0.892) | 10470.42 | 22.32 |
| [C6C1Pip][NTF2] | 308–358 | (1.669) – (0.896) | 10484.03 | 22.06 |
| [C4–4-C1Py][N(CN)2] | 338–368 | (−1.224) – (−1.158) | –2762.59 | –1.23 |
| [COC2C1Mor][FAP] | 318–368 | (1.547) – (1.101) | 7483.32 | 10.43 |
| [COC2C1Pip][FAP] | 318–368 | (1.954) – (1.308) | 8018.66 | 10.15 |
| [COC2C1Pyrro][FAP] | 318–368 | (2.086) – (1.371) | 8000.23 | 10.28 |
| [HOC2C1Im][FAP] | 318–368 | (0.797) – (0.570) | 5809.05 | 10.37 |
| [C1C1Im][DMP] | 363–383 | (−2.960) – (−2.856) | –9679.53 | –2.11 |
| [C4C1Im][Br] | 333–393 | (−2.631) – (−2.017) | –17394.13 | –28.59 |
| [C2C1Im][MeSO3] | 318–358 | (−2.645) – (−2.430) | –10297.05 | –10.80 |
| [C2C1Im][C(CN)3] | 318–368 | (−0.080) – (−0.153) | 4292.99 | 13.47 |
| [C2C1Im][FAP] | 318–368 | (1.906) – (1.425) | 7963.10 | 10.19 |
| [HOC2C1Im][N(CN)2] | 328–358 | (−0.946) – (−0.991) | –4815.33 | –0.67 |
| [C4C1Im][Ac] | 298–393 | (−4.342) – (−3.194) | –10035.54 | 1.80 |
| [C4C1Im][C(CN)3] | 318–368 | (0.019) – (−0.164) | 4296.96 | 13.22 |
| [C4C1Im][Cl] | 333–428 | (−3.324) – (−2.364) | –8171.56 | 1.73 |
| [C4C1Im][N(CN)2] | 318–368 | (−1.171) – (−0.978) | –2657.32 | –1.10 |
| [C4C1Im][NTF2] | 293–363 | (1.373) – (0.688) | 10316.10 | 22.53 |
| [C4C1Im][DMP] | 333–428 | (−3.381) – (−2.292) | –9628.69 | –2.68 |
| [C4C1Im][MeSO3] | 333–428 | (−2.120) – (−1.431) | –10293.08 | –11.05 |
| [C6C1Im][CF3SO3] | 303–333 | (0.270) – (−0.446) | 813.32 | 4.17 |
| [B Cya Py][NTF2] | 308–368 | (1.196) – (0.693) | 10172.84 | 22.71 |
| [C12C1Im][NTF2] | 318–368 | (1.501) – (1.022) | 10334.24 | 20.30 |
| [C4C1Py][C(CN)3] | 318–368 | (−0.029) – (−0.228) | 4191.69 | 13.09 |
| [4OHC3 4-C1Mor][NTF2] | 318–368 | (0.357) – (0.095) | 8397.84 | 23.15 |
| [C8Quin][NTF2] | 313–353 | (1.071) – (0.350) | 10634.38 | 21.47 |
| [C6Quin][NTF2] | 313–353 | (1.446) – (1.098) | 10627.95 | 22.04 |
| [P4442][DEP] | 328–368 | (−2.292) – (−2.154) | –8271.31 | –3.62 |
| [C8C1Im][NTF2] | 303–333 | (1.358) – (0.947) | 10302.30 | 21.46 |
| [C2C1Im][C8SO4] | 333–358 | (−1.832) – (−1.897) | –6116.82 | –2.60 |
| [C2C1Mor][N(CN)2] | 318–368 | (−1.127) – (−0.941) | –3166.68 | –0.59 |
| [HOC3Py][N(CN)2] | 328–358 | (−0.918) – (−0.839) | –4578.00 | –0.60 |
| [OHC3–C1Im][N(CN)2] | 318–368 | (−1.049) – (−0.891) | –3928.65 | –0.68 |