Molecular Orbital Constants for Water (H2O) MO B (eV) U (eV) N Q DblIon Special Remarks 2a1 36.88 70.71 2 1 No none none 1b2 19.83 48.36 2 1 No none none 3a1 15.57 59.52 2 1 No none none 1b1 12.61 61.91 2 1 No none none