Theoretical Studies on Copper,Nickel Complexes of Corrole and Isocorrole

Corrole 2, an analogue of porphyrin 1, is also a fascinating molecule. It can be considered as an intermediate in the biosynthesis of corrin 3,the chromophore of Vitamin B₁₂, Similar to porphyrin, corrole also has 18 electrons in the π-system of the ring and is aromatic. Recently, isocorrole 4, another compound in the corrole family, was synthesized by Vogel's group^1].One important feature of corrole and isocorrole is the possible formation of tri-anion, and thus the ability to stabilise high-oxidation-state metal cations.