Molecular Orbital Constants for Ethylene ion (C2H4+) MO B (eV) U (eV) N Q DblIon Special Remarks 1a 315.15 436.08 2 1 No ion none 1b1 315.12 436.44 2 1 No ion none 2a 33.52 40.73 2 1 No ion none 2b1 28.22 36.01 2 1 No ion none 1b2 24.41 27.06 2 1 No ion none 3a 23.30 35.07 2 1 No ion none 1b3 21.81 29.99 2 1 No ion none 2b3 19.21 29.54 1 1 No ion none