Remarkably, when comparing Ama + and Ada-CN + in the case of the lower energy window of eV, a departure from the well-known and celebrated energy gap-law is observed. Namely, Ada-CN + decays slower to the ground state than Ama + despite the lower initial excitation energy for the former. An analysis of the nonadiabatic dynamics reveals the dynamic nature of involved energy gaps and nonadiabatic coupling terms responsible for this situation. In summary, the application of the energy-gap law based on static energy gaps alone, typically between ground and first excited state only, appears to be insufficient. We expect that this statement will also hold if the dynamics are computed at a higher level as here, and it should not only apply to the cations considered in this work. In fact, a similar conclusion was made for another radical cation in ref. .