Table 2.
substrate | BDE (H•) (kcal/mol) | E0 (V vs Fc+/0) | kOMeAN32H+ (M−1 s−1) | kOMeAN3Sc3+ (M−1 s−1) | kOMeAN32BR3 (M−1 s−1) | notes |
---|---|---|---|---|---|---|
4-MeO-PhOH | 80.9 | 1.01 | 64 ± 1 | 53 ± 1 | 2.9 ± 0.2 | a |
4-MeO-PhOD | 1.01 | 52 ± 1 (KIE: 1.25) | 42 ± 1 (KIE: 1.19) | 2.4 ± 0.1 (KIE: 1.17) | a | |
2,4-tBu2-PhOH | 81.9 | 1.04 | 1.8 ± 0.2 | 1.1 ± 0.1 | 0.12 ± 0.01 | yield: 60–70% |
4-PhO-PhOH | 1.07 | 0.51 ± 0.02 | 0.44 ± 0.02 | 0.046 ± 0.001 | a | |
4-tBu-PhOH | 1.10 | 0.025 ± 0.001 | 0.023 ± 0.001 | 0.0027 ± 0.0003 | a | |
4-Me-PhOH | 84.6 | 1.12 | 0.035 ± 0.002 | 0.027 ± 0.001 | 0.0024 ± 0.0002 | a |
4-Cl-PhOH | 85.7 | 1.21 | no reaction | no reaction | no reaction | no decay (t = 1 h) |
Product not quantified (see text and Supporting Information).