For Ada-CN + , for the lower energy window of eV, the initial population goes mainly into D 3 (P D 3 (0) ≈ 0.86). The D 3 state decays with a time constant of 69 fs (obtained using a monoexponential fit P D 3 (t) = P D 3 (0) exp(-t/τ )). The D 2 and D 1 populations increase, reaching maxima at 35 fs and 75 fs, respectively, after which they decay. And the D 0 population rises, with a time constant of ∼120 fs as mentioned above.