Electronic state populations obtained from surface hopping calculations for excitation into the first intense bands are shown in Fig. . It is seen there that (ultra)fast internal conversion to the cation ground state (D 0 ) takes place. Using a single exponential to fit the rise of the D 0 population, P D 0 = 1 -exp(-t/τ ), we obtain ground state recovery times (τ ) of ∼25 fs for Ama + , and ∼120 fs for Ada-CN + . For Ada + , in our previous work , the corresponding ground state recovery times were between 10 fs (when exciting into the D 1 /D 2 band) and 100 fs (when exciting into high-energy band D 8 at ∼3.8 eV, cf. Fig. ). Upon excitation of Ada + to the first intense band (D 3 /D 4 ), τ ≈ 39 fs (this case is presented for comparison in Fig. ).