Formal analysis suggests that static correlation, manifesting as more than one significant NTO pair, may occur in cases where a molecule consists of what amounts to two weakly-interacting chromophores, even if these are but different chemical moieties within the same molecule. An example is the molecule shown in Fig. that consists of three identical ligands connected to a central 1,3,5-triazene moiety in a propeller motif, wherein each ligand may be considered a distinct chromophore. (This and other triazene derivatives have been investigated in the context of optoelectronic applications such as triplet-triplet annihilation and TADF. ) Canonical MOs for this molecule are not shown but are mostly delocalized over all three ligands, nevertheless the NTOs for the S 0 → S 1 transition are delocalized over just two of the three ligands (Fig. ). Although this could be inferred also from the particle and hole densities, what those densities cannot reveal is the role of static correlation: this excited state is evidently an irreducible combination of two particle/hole pairs. Another example with multiple chromophores within the same molecule is the poly[2methoxy-5-(2-ethylhexyloxy)-1,4-phenylene vinylene] (MEH-PPV) polymer that is shown in Fig. . Here, breaks in the conjugation divide the polymer into several effective intramolecular chromophores, yet electronic coupling between them is sufficient to maintain coherence of the exciton across these gaps in conjugation.