Table 1: EPR data of porphyrins 1, 2, 3, 6 and 7 in methanol at 295 K and at 77 K.

Compound g|| g┴ A||a A┴ a giso Aisoa α2 shfcc f b
1 2.1858 2.0598 206.13 17.3 2.1018 80.25 0.8207 16.5 106.03
2 2.1860 2.0610 206.15 17.3 2.1026 79.55 0.8215 16.5 106.03
3 2.1858 2.0520 205.11 17.3 2.0966 78.59 0.8145 16.5 106.56
6 2.1900 2.0612 206.53 9.6 2.1041 75.25 0.8284 16.5 106.03
7 2.1868 2.0640 206.22 17.4 2.1049 78.37 0.8238 16.5 106.03

a Coupling constants are in cm-1 and multiplied by 104; b The parameter f is given by g||/ A||; c The units are given in  cm-1, g+-0.002 y A+- 0.001.