The Only Stable State of O 2-Is the X 2 Π g Ground State and It ( Still ! ) Has an Adiabatic Electron Detachment Energy of 0 . 45 eV

The ultraviolet photoelectron spectrum of O 2 exhibits 29 resolved vibronic transitions to the three low-lying electronic states of neutral O 2 (X Σg, a 1∆g, b Σg) from the X ΠJ (J ) 3/2 and 1/2) spin -orbit states of the anion. A Franck -Condon simulation, using the established molecular constants of the neutral oxygen states, matches every observed… CONTINUE READING