“…The negative ion formation of water bare molecules has been attracting the attention of the international scientific community for at least 90 years, though we still note a global interest in investigating the electronic state spectroscopy of its anionic states. Dissociative electron attachment (DEA) to H 2 O has been reported on several occasions by experimental − and theoretical methodologies, ,− although a global consensus about the nuclear dynamics governing the lowest-energy Feshbach resonances of H – and O – has not yet been reached. , Additionally, the anionic fragments 1u, 16u, and 17u were reported from electron transfer experiments in high-energy (1–4 keV) collisions of H – , O – , and OH – with water molecules . Regardless, theoretical calculations related to water 2 B 1 , 2 A 1 , and 2 B 2 Feshbach resonances have been employed to obtain cross sections for DEA ,, and the potential energy surfaces of such metastable states. − , Electron scattering − ,− and ion scattering, and electronic excitation ,,,− in single water molecules and aggregates, have been reported, while H 2 O bond dissociation energies have been determined by experimental and theoretical methods .…”