Double Rydberg anions: Photoelectron spectroscopy of NH_4~-, N_2H_7~-, N_3H_10~-, N_4H_13~-, and N_5H_16~-

摘要

We report the discovery and photoelectron spectroscopic study of the four double Rydberg anions: N_2H_7~-, N_3H_10~-, N_3H_13~-, and N_5H_16~-; of three solvated double Rydberg anions; and of a previously unseen feature in the spectrum of the double Rydberg anion, NH_4~-. In each case, vertical detachment energies were measured and vibrational features tentatively assigned. In the case of solvated double Rydberg anions, anion-neutral interaction energies were also determind.