Corrole 1 is a contracted porphyrin analogue that can be bound to transition metals giving so-called metallocorroles. It is known to stabilize transition metals in high oxidation states. Metallocorroles are useful in various catalytic reactions, for example, iron and manganese corroles proved to be useful in hydroxylation reactions whereas antimony and rhodium corroles were successfully used in oxidation reactions of hydrocarbons and cycloporpanation reactions, respectively. Furthermore, iron and rhodium corroles have been also used in N-H and C-H insertion reaction, respectively. All these molecules have single transition metal in their structures. However, metalloporphyrin also can be synthesis as dimers with multiple metal-metal bonds in which have a significant interest. Tuning the bond order of the metalloporphyrin/corrole dimers can be achieved by oxidation and reduction of the dimer. Metal-metalbonded dimeric porphyrin complexes in various accessible oxidation states were studied utilizing resonance Raman scattering, infrared absorption, and absorption spectroscopy. Error! Bookmark not defined.d,e For instance, Kadish and co-workers characterized the one-electron-oxidized forms of ruthenium-rutheniumbonded dimeric corrole complexes using combination of UV/Vis spectrophotometry and EPR Spectroelectrochemistry.