Later we discuss that this component is due to dissociative trajectories occurring only for 7-AIH + . The results of the fitting are summarized in Table . The margins of error were computed for a 95% confidence interval. After excitation into the S3 state, both molecules undergo internal conversion to S2 and, then, to S1 in the sub-ps time scale. In 6-AIH + , the S3 state deactivates within 156  40 fs, while this process takes longer in 7-AIH + , 278  36 fs. 7-AIH + also shows partial internal conversion to S0 within this time (Figure ).