Slow electron transfer to manganese(III) porphyrins results when the macrocycle deviates from planarity. This was demonstrated by measuring the kinetics of homogeneous electron transfer from a series of semiquinone radical anions to synthetic manganese porphyrins (shown schematically; R1 =H, Cl, F; R2=H, F). Three of the four porphyrins studied have nonplanar macrocycles. These results could have implications for the role of manganese in biological electron transfer processes.
|Number of pages||3|
|Journal||Angewandte Chemie - International Edition|
|State||Published - 1 Apr 1999|
- Conformation analysis electron transfer kinetics