Free Gibbs Enthalpies and pe Values for Hydrogen
| Solvent S | ΔsolvG°(H+,S) / kJ mol−1 | pHabs
| pK'e = pe°abs (H+/H2, S) | E°abs (H+/H2, S) / V | E°S / V |
|---|---|---|---|---|---|
| H2O | −1104.5 | 193.50 | 72.27 | 4.28 | 0 |
| MeCN | −1058.1 | 185.37 | 80.40 | 4.76 | 0 |
| DMSO | −1123.9 | 196.90 | 68.87 | 4.08 | 0 |
| NH3 | −1201.5 | 210.49 | 55.27 | 3.27 | 0 |
| DCE | −860.0 | 150.66 | 115.10 | 6.81 | 0 |
| EMIM Br | −1101.9 | 193.04 | 72.72 | 4.30 | 0 |
| Et2O | −998.0 | 174.84 | 90.93 | 5.38 | 0 |
| HF | −908.0 | 159.07 | 106.69 | 6.31 | 0 |
| MeOH | −1094.1 | 191.68 | 74.09 | 4.38 | 0 |
| EtOH | −1093.4 | 191.55 | 74.21 | 4.39 | 0 |
| 1-PrOH | −1095.5 | 191.92 | 73.84 | 4.37 | 0 |
| 1-BuOH | −1101.5 | 192.97 | 72.79 | 4.31 | 0 |
| EG | −1099.5 | 192.62 | 73.14 | 4.33 | 0 |
| PGa | −1098.0 | 192.36 | 73.41 | 4.34 | 0 |
| DMFa | −1118.9 | 196.02 | 69.75 | 4.13 | 0 |
| PC | −1054.5 | 184.74 | 81.03 | 4.79 | 0 |
| NMPy | −1129.5 | 197.88 | 67.89 | 4.02 | 0 |
| MeNO2 | −1009.5 | 176.86 | 88.91 | 5.26 | 0 |
| PhNO2 | −1071.5 | 187.72 | 78.05 | 4.62 | 0 |
| Py | −1132.5 | 198.40 | 67.36 | 3.99 | 0 |
| HMPT | −1064.5 | 186.49 | 79.28 | 4.69 | 0 |
| If not otherwise stated values for ΔtrG°(H+, H2O → S) according to Marcus et al. [1] [a] Values according to Marcus et al. [2] |
[1] Y. Marcus, M. J. Kamlet, R. W. Taft, J. Phys. Chem. 1988, 92, 3613-3622.
[2] C. Kalidas, G. Hefter, Y. Marcus, Chem. Rev. 2000, 100, 819.