The results collected for the solvation models demonstrate a predominant S 2 →S 1 transition channel in the IC dynamics, populating the S 1 state in each case. In 2-TP and 4-TP, population transfer into higher singlet states is negligible, since either S 2 or S 1 acts as the initial phtoexcited state with ππ * excitation (please refer to Tables and). . The table also shows that the T 1 state is energetically well-separated from the singlet states, preventing its direct population from any state within the singlet manifold. Consequently, the population of T 1 results from T 2 →T 1 transitions (i.e. IC).