(for all TA spectra with time trace fittings see Fig. ). It is apparent that TA spectra are superimposed by the ground state bleaching resulting in an absorption maximum at ~400 nm with two prominent negative absorbance signals at ~450 and ~500 nm reproducing the exciton split bands of the ground state. These are the characteristic peaks of the ground state electronic transitions of the complexes and provide information that the triplet-triplet absorptivity is weaker than the singlet absorptivity, although occurring in decent yields. Most TA spectra display a broad band between 550-700 nm. Complex 13d shows nearly the same intensity of the two ground-state bleaching bands indicating a weaker triplet-triplet absorption at 500 nm. Conjugate 20 maintained moderate triplet state lifetime displaying one ground state bleaching band at ~500 nm, repeating the absorption pattern typical of the BODIPY moiety in nanosecond TA experiments. Figure . TA spectra at ambient conditions of 13a in ethanol (40 ns tinc; 450 nm λexc); 13d in toluene (40 ns tinc; 450 nm λexc); 13h in toluene (80 ns tinc; 450 nm λexc); 13i in ethanol (60 ns tinc; 450 nm λexc); arrows pointing from blue to red color show the decay from the maximum intensity in the successive steps, respectively.