Molecular Orbital Constants for Oxygen molecule (O2) MO B (eV) U (eV) N Q DblIon Special Remarks 2greek:sigmag 46.19 79.73 2 1 No none none 2greek:sigmau 29.82 90.92 2 1 No none none 1greek:piu 19.64 59.89 4 1 No none none 3greek:sigmag 19.79 71.84 2 1 No none none 1greek:pig 12.07 84.88 2 1 No none none