As reported in past work, such a silver metal cluster supports surface plasmon resonance at the excitation energy ∼ 3.59 eV, which involves collective electronic transitions and shows a large oscillation strength in the absorption spectrum. This plasmonic excitation is much higher than the HOMO-LUMO gap (∼ 1.68 eV) of the metal cluster. Therefore, we expect that excited state dynamics may well populate many high-lying electronic states.