x in eq. 8, and the value of µ in eq. 9 is determined iteratively in order to satisfy eq. 10. At the conclusion of this procedure, ω GDD is obtained from eq. 5. Previous work indicates that the resulting value of ω GDD is negligibly different from a fully self-consistent determination. The valence excitation data set consists of 21 transitions assembled by Peach et al. (Table ), which has elsewhere been used to test LRC functionals. Geometries and other properties for this data set can be found in Ref. 55. The CT data set (Table ) is assembled from Ref. 42 and a newer data set of intramolecular CT transitions in Ref. 43. TD-DFT calculations for these two data sets employ full linear response, i.e., the TDA is not invoked. This helps to identify the transitions in question as compared to published benchmarks. These calculations use the def2-TZVPD basis set 66 and all DFT calculations use the SG-1 quadrature grid. We do employ the TDA for the calculations on conjugated polymers, for the open-shell test set, and for the e -(aq) models. Acene calculations use the def2-TZVPD basis set but for the conjugated polymers, we use def2-ma-SVP. The latter basis affords essentially identical ω IE values for the acenes; see Tables and.