Table 2.
Electrochemical data of metalloporphyrins in dry DMF solution (E versus SHE)
| Redox potentials | Energy | ||||||
|---|---|---|---|---|---|---|---|
| Porphyrin | Ered1 (V) | Ered2 (V) | Eox1 (V) | Eox2 (V) | EHOMO (eV)d | ELUMO (eV)e | ΔE (eV)f |
| Zn(3-PtTPyP) | − 1.12a | − 0.71c | + 0.80b | + 1.10b | − 5.20 | − 3.69 | 1.51 |
| Cu(3-PtTPyP) | − 1.02c | − 0.67c | + 0.76b | + 0.90b | − 5.16 | − 3.38 | 1.78 |
| Co(3-PtTPyP) | − 1.38a | – | + 0.90b | – | − 5.30 | − 3.02 | 2.28 |
| Mn(3-PtTPyP) | − 1.32a | − 0.71a | + 0.81b | + 1.13b | − 5.21 | − 3.08 | 2.13 |
aEpc = cathodic peak
bEpa = anodic peak
cE1/2 = Epa + Epc/2
dEHOMO = − [4.4 + Eox1 (vs. SHE)]
eELUMO = − [4.4 + Ered2 (vs. SHE)]
fΔE = ELUMO − EHOMO