Molecular Orbital Constants for Carbon monoxide (CO) MO B (eV) U (eV) N Q DblIon Special Remarks 3greek:sigma 41.92 79.63 2 1 No none none 4greek:sigma 21.92 73.18 2 1 No none none 1greek:pi 17.66 54.30 4 1 No none none 5greek:sigma 14.01 42.26 2 1 No none none