Table 8. Comparison of Catalytic Activity of the Porphyrin-Fe(III) Complexes Used in This Work, Their Corresponding Pinch Complexes 1–6, and Its Correlation with the Proportion of qms16 (with Permission of Reyes-Ortega, Y. et al. Dalton Trans. 1998,4, 667–674).
| comp. | KH2O2 (M) | Kguaiacol (M) | kcat (M–1 s–1) | qms A s = 5/2, 3/2 | qms B s = 5/2, 3/2 | qms C s = 5/2, 3/2 |
|---|---|---|---|---|---|---|
| protoporphyrin Fe(III) | 1.2 × 10–2 | 2.45 × 10–4 | 1.30 × 104 | 74% [70%, 30%] | 26% [11%, 89%] | |
| 1 | 6.67 × 10–2 | 4.00 × 10–4 | 2.00 × 104 | 90% [84%, 16%] | <7% [<15%, >85%] | <3% [<20%, >80%] |
| 4 | 2.30 × 10–2 | 1.27 × 10–4 | 4.58 × 102 | 85% [73%, 26%] | 10% [<8%, >92%] | <5% [<9%, >91%] |
| mesoporphyrin Fe(III) | 2.75 × 10–2 | 3.48 × 10–4 | 4.34 × 102 | 85% [85%, 15%] | 15% [92%, 8%] | |
| 2 | 4.2 × 10–1 | 5.3 × 10–4 | 1.5 × 103 | 90% [86%, 14%] | <9% [<15%, >85%] | <1% [<12%, >88%] |
| 5 | 3.03 × 10–2 | 3.05 × 10–5 | 1.90 × 102 | 67% [<8%, >92%] | 18% [67%, 33%] | 15% [<52%, >48%] |
| deuteroporphyrin Fe(III) | 4.44 × 10–2 | 6.67 × 10–4 | 3.33 × 103 | 92% [87%, 13%] | 9% [89%, 11%] | |
| 3 | 1.3 × 10–1 | 4.3 × 10–4 | 1.9 × 102 | 90% [76%, 24%] | <10% [<15%, >85%] | |
| 6 | 1.65 × 10–2 | 3.36 × 10–4 | 3.58 × 102 | 79% [>92%, <8%] | 21% [11%,88%] | |
| (HRP) | 1.3 × 10–1 | 1.8 × 107 |