For the unfunctionalized copper corrole, configurations assigned as Cu(II) comprise 41% of the total wavefunction ( These complexes are typically reported as Cu(III) and are well-described by DFT. Specifically, geometries, reactivity, and TD-DFT UV-vis spectra have been shown to be consistent with experiment. Using the localized orbital CASCI approach, their percent radical character is between 15.5% to 18.9%. Even if one is satisfied labeling a system with 20% radical character as Cu(III), the corrole has significantly more open shell character and it should come as little surprise that the general consensus in the community is to assign these species as Cu(II), if only to emphasize this point.