Solution behavior of iron(iii) and iron(ii) porphyrins in DMSO and reaction with superoxide. Effect of neighboring positive charge on thermodynamics, kinetics and nature of iron-(su)peroxo product - Dürr, Katharina L.; Tröppner, Oliver; Olah, J.; Li, Jing; Zahl, Achim; Drewello, Thomas; Jux, Norbert; Harvey, Jeremy N.; Ivanovic-Burmazovic, Ivana (Dalton Transactions, 2012)