Figure show the correlation between the monomers' property versus the oligomers' triplet ground-state stability. There is no strong correlation between each of the monomer properties and the stability of the whole oligomer, as they show heteroscedastic behavior. That is, monomers with low relative HOMO levels and high relative LUMO levels, HOMO-LUMO gap, and ∆E T -S show low triplet state stability in the oligomer. On the other end, monomers on the opposite side of those properties do not show a clear-cut correlation between the property and the oligomers ∆E T -S , at least when paired with monomer 630.