Table 1.
Derivative | E1red | E2red | E3red | E4red | E5red | E6red |
1a | −0.900 | −1.205 | −1.420 | −1.770 | −2.270 | |
1b | −0.945 | −1.376 | −1.885 | −2.100 | −2.395 | |
1c | −0.905 | −1.285 | −1.505 | −1.775 | −2.265 | |
1d | −0.835 | −1.210 | −1.715 | −2.155 | ||
1e | −1.050 | −1.320 | −1.800 | −2.275 | ||
1f | −0.915 | −1.290 | −1.530 | −1.705 | −2.320 | |
1g | −0.905 | −1.455 | −1.836 | −2.275 | ||
1h | −0.890 | −1.270 | −1.770 | −2.245 | ||
1i | −0.890 | −1.290 | −1.590 | −1.885 | −2.170 | −2.350 |
1j | −0.883 | −1.253 | −1.780 | −2.252 | ||
1k | −0.897 | −1.279 | −1.737 | −1.873 | ||
2 | −0.915 | −1.385 | −1.565 | −1.725 | −1.865 | −2.125 |
PCBM | −1.049 | −1.290 | −1.535 | −1.785 | −2.285 |
aA 3 mm platinum plate was used as working electrode and a platinum wire as counter electrode. Ag/AgNO3 (0.01 M in MeCN/0.1 M TBAPF) was used as reference electrode separated by Vycor® glass, and all potentials are given in relation to this electrode. The measurements were performed using a concentration of approximately 0.5 mM of the compounds.