Next, we study the optical excitations of the complex. For this purpose it is instructive to first take a look at the molecular energy levels in the electronic ground state of the individual molecular entities and the complex as informed by our calculations and sketched in Figure . In this simplified single particle picture, in the complex, transfer of one electron from each of the oligomers onto the dopant molecule occurs, one in the α and one in the β spin channel. This results in a doubly occupied orbital on the dopant, forming the HOMO of the complex, and leaving an unoccupied orbital, i.e., polaron, on each of the oligomers. These two unpaired unoccupied orbitals must have different spin. Consequently the two remaining unpaired electrons on the oligomers also have different spin. In the complex these two electrons occupy the HOMO-1 orbital. The two doping induced unoccupied orbitals on the oligomers, i.e., the polarons, form the LUMO of the complex. As a consequence, the α and β components of both LUMO and HOMO-1 levels are nearly degenerate in energy but are spatially well separated and reside on the different oligomers of the complex, as illustrated for the LUMO in Figure ). As also shown in the figure, both spin channels of the HOMO level are localized on the CN6-CP molecule.