Table 1.
Calibration set of standard compounds with experimentally determined logK OW values.
| No. | Compound | logK OW | pKa | α Ionization degree (%) |
|---|---|---|---|---|
| 1 | 1,2,3-Benzotriazole | 1.44 | 8.37 | 0.42 |
| 2 | 4-Chlorobenzoic acid | 2.65 | 3.98 | 99.05 |
| 3 | 2-Nitrobenzaldehyde | 1.74 | — | — |
| 4 | 4-Bromoaniline* | 2.26 | 3.86 | 99.28* |
| 5 | Phenol | 1.46 | 10.09 | 0.01 |
| 6 | Benzophenone | 3.18 | — | — |
| 7 | 3-Nitrobenzaldehyde | 1.46 | — | — |
| 8 | 4-Aminobenzoic acid | 0.83 | 4.65 | 95.72 |
| 9 | Phthalimide* | 1.15 | 100.00* | |
| 10 | 1,4-Benzoquinone | 0.20 | — | — |
| 11 | 4-Nitrophenol | 1.91 | 7.15 | 6.61 |
| 12 | 3-Nitrophenol | 2.00 | 8.28 | 0.52 |
| 13 | Benzyl alcohol | 1.10 | — | — |
| 14 | Naphthylamine* | 2.25 | 3.92 | 99.18* |
| 15 | 2-Naphthol | 2.85 | 9.67 | 0.02 |
| 16 | 4-Fluoroaniline* | 1.15 | 4.70 | 95.23* |
| 17 | 1-Naphthol | 2.85 | 9.34 | 0.05 |
| 18 | 4-Hydroxybenzaldehyde | 1.35 | — | — |
| 19 | 3-Chloronitrobenzene | 2.46 | — | — |
| 20 | 2,4-Dichlorophenol | 3.06 | 7.85 | 1.39 |
| 21 | 4-Methylphenol | 1.94 | 10.09 | 0.01 |
| 22 | 4-Chlorophenol | 2.39 | 9.38 | 0.04 |
| 23 | Anthracene | 4.45 | — | — |
| 24 | Acetophenone | 1.58 | — | — |
| 25 | 2-Aminophenol | 0.62 | 9.44 | 0.04 |
| 26 | 4-t-Butylphenol | 3.31 | 10.31 | 0.00 |
| 27 | 1,3,5-Trihydroxybenzene | 0.16 | 9.40 | 0.04 |
| 28 | 2,6-Dimethylphenol | 2.36 | 10.59 | 0.00 |
*Calculated to the corresponding protonated conjugated acid.