We observe SF in all SFC-𝛽-SFC compounds and find that the rate constants for triplet pair formation are markedly different for DQI connectivity, consistent with the graphical model (Figure ). Importantly, QI-type effects persist across all bridges used in this study. In both pentacene and tetracene compounds (P𝜷P and T𝜷T), faster triplet formation is observed when 𝛽 = 14Ph, 26N, and 26A, compared to the corresponding DQI connectivity (𝛽 = 13Ph, 27N, and 27A). This effect can be readily observed in the raw transient absorption data (Figure and Figure ) and single wavelength kinetics selective for the rise of the triplet (pentacene, Figure ) or decay of the singlet (tetracene, Figure ). Comparing P-Ph-P compounds, 𝜏 !" drastically changes by a factor of 23, from 17 ps for P-14Ph-P to a much slower 391 ps for P-13Ph-P. This effect is even more pronounced in the analogous T-Ph-T compounds, with a faster 𝜏 !" of 7 ps for T-14Ph-T to 65 times slower, 453 ps in T-13Ph-T. Significantly, DQI has a larger impact on the singlet fission dynamics than proximity of the bridged P and T SFCs. For example, the rate of singlet fission in 13Ph is ~ 2× slower than the previously reported 4,4'-biphenylene (𝛽 = 44bPh) bridged compounds P-44bPh-P (𝜏 !" = 220 ps) and T-44bPh-T (𝜏 !" = 240 ps), which have double the bridge length. This result underscores the significance of bridge connectivity in dictating triplet pair formation dynamics. Interestingly, we find that the magnitude of the difference between DQI and CQI effects diminishes with increasing bridge length, in the order of Ph > N > A. Analogous to Ph bridged compounds, large differences in the rate constants between DQI (27N) and CQI (26N) connectivity points are observed in naphthalene bridged dimers. Triplet pair formation is slower in the 27N DQI bridge relative to the 26N CQI bridge by a factor of 16 in the pentacene series, and by a factor of 32 in the tetracene series. These differ in magnitude compared to the 23-fold/65-fold difference for Ph bridged compounds. Furthermore, triplet pair formation in the 27A DQI bridge relative to the 26A CQI bridge is a factor of 5 slower for P𝜷P and a factor of 4 slower for T𝜷T, a more subtle difference than what is observed for Ph and N bridges. A summary of iSF time constants for these compounds is shown in Table . The trends are depicted graphically in Figure , where the plots are normalized singlet fission rate as a function of chromophore, bridge type, and connectivity; and these are relative to the compound with the fastest rate of iSF in the series (T-14Ph-T). The monotonic decrease in the ratio of the rate of SF in CQI and DQI connectivity (𝑘 #$% /𝑘 &$% ) is shown in Figure , where it is clear that tetracene chromophores exhibit a larger contrast in rate constants with the smallest bridge, but such difference decreases with the longer bridges. The decrease in the contrast of the SF rate constants between CQI and DQI connectivity