For instance, C3-G hybrids can be classified as case-4, displaying low global ΔHL with values of 0.1 eV. In contrast, the C5-G hybrid is a mixture of case-1 and case-3, reaching up to 0.9 eV, close to the isolated graphene nanosheet (ΔHL=0.8 eV, Table ) in correspondence with a significant contribution to the α and β spin-orbitals. From a structural point of view, changes in planarity substantially affect the orbital structure of metallo-macrocycles. Because of their planar structure, the orbitals of copper are orthogonal to the π-conjugation of corrole, favoring the formation of d-π hybrid orbitals.