Table S1.
Data extracted from absorption band deconvolution for the formation of adduct [PhOH---MQ+]
| 104× [MQ+] = [4-MeOArOH], M | Abs at 370 nm* | 104 × [Adduct], M, ε = 45 M−1⋅cm−1 | KA, M−1 |
| 5.00 | 0.0175 | 0.389 | 18 |
| 10.00 | 0.0810 | 1.800 | 26 |
| 15.00 | 0.1756 | 3.902 | 31 |
| 20.00 | 0.3086 | 6.858 | 39 |
| 25.00 | 0.4492 | 9.982 | 44 |
| av KA = 32 ± 10 | |||
| 5.00 | 0.0192 | 0.427 | 20.4 |
| 10.00 | 0.0533 | 1.184 | 15.2 |
| 15.00 | 0.1161 | 2.580 | 16.7 |
| 20.00 | 0.2594 | 5.765 | 28.5 |
| 25.00 | 0.3778 | 8.394 | 30.4 |
| av KA = 22 ± 6 | |||
| 5.00 | 0.0123 | 0.384 | 18.0 |
| 10.00 | 0.0370 | 1.156 | 14.8 |
| 15.00 | 0.0832 | 2.600 | 16.9 |
| 20.00 | 0.1449 | 4.528 | 18.9 |
| 25.00 | 0.2158 | 6.744 | 20.2 |
| av KA = 17 ± 2 |
All at 23 ± 2 °C in a medium of 50 mM Tris buffer, pH 8.5, with ionic strength maintained at I = 0.8 M with NaCl.
*
In a 1-cm path length cell.