Table 1.
LMCT Bands for Metal-Substituted Azurins and Model Complexes.
| M2+-azurin | λ1(cm-1)×10-4 (ε(cm 1mM-1)) | λ2(cm-1)×10-4 (ε(cm 1mM-1)) | Model complex | λ1(cm-1)×10-4 (ε(cm 1mM-1)) | λ2(cm-1)×10-4 (ε(cm 1mM-1)) |
|---|---|---|---|---|---|
| Fe2+ | 2.75 (1.0) | 3.11 (2.4) | Fe2+L(SC6F5)a | 2.82 (1.4) | 3.08 (5.9) |
| Fe2+ (Met121Ala) | 2.78 (0.34) | 3.16 (1.8) | |||
| Fe2+ (Met121Ala, N3–) | 2.78 (0.34) | 3.16 (1.9) | |||
| Co2+b | 2.68 (1.5) | 3.00 (4.0) | Co2+L(SC6F5)a | 2.94 (2.9) | 3.22(5.0) |
| Ni2+b | 2.28 (3.3) | 2.82 (1.6) | Ni2+L(SC6F5)a | 2.30 (1.7) | 2.80 (1.9) |
| Cu2+a | 1.60 (5.8) | NA | |||
| Cu2+ (Met121Ala)c | 1.59 (NA) | 2.17 (NA) | Cu2+L(SC6F5)a | 1.51 (6.0) | NA |
| Cu2+ (Met121Ala, N3–)c | 1.92 (NA) | 2.44 (NA) |