Mixed-valence porphyrin pi-cation radical derivatives: Electrochemical investigations

摘要

The electrochemistry of [Cu( OEP)] and [Ni( OEP)] are compared with the mixed-valence pi-cations Cu(OEP)(center dot/2)](2+) and [Ni(OEP)(center dot/2)](2+). These electrochemical studies, carried out with cyclic voltammetry and hydrodynamic voltammetry, show that the mixed valence pi-cations have distinct electrochemical properties, although the differences between the [M(OEP)](+)/(0) and M(OEP)(./2)](2+/0) processes are subtle. (C) 2007 Elsevier B. V. All rights reserved.