Table 1.
Reactivity of synthetic and enzymatic FeIV–oxido complexes with C-H substrates.
| Spin state | Complex | Substrate Reactivitya | References |
|---|---|---|---|
| 1 | [FeIV(O)TMC(MeCN)]2+ | DHA (0.016) CHD (0.018) |
88,114 |
| [FeIV(O)TPA*(MeCN)]2+b | DHA (0.042) | 117 | |
| [FeIV(O)N4Py]2+ | DHA (2) CHD (1.3) |
88 | |
| 2 | [FeIV(O)TMG3tren]2+ | DHA (0.090) CHD (1.2) |
88 |
| [FeIVH3buea(O)]− | No reactivity | 115 | |
| [FeIV(O)tpaPh]− | CHD (1.4) | 90 | |
| [FeIV(O)(TQA)(MeCN)]2+ | Cyclohexane (0.37, −40 °C) DHA (200, −80 °C) |
102 | |
| TauD-J | Taurine (kobs = 13 s−1, 5 °C, aqueous) | 37 |
a
Unless specified, rate constants (k2, M−1 s−1) were measured in MeCN at −30 °C.
b
TPA* = tris(4-methoxy-3,5-dimethylpyridyl-2-methyl)amine.